曼昆《经济学原理》(微观)第五版测试题库 (01)
曼昆第五版复习经济学原理试题 (1)

一、选择题:(每小题1分,共20分)1.一国的生产可能性曲线上的点表示(D)A.通货膨胀B.该国可利用的资源减少及技术水平降低C.失业或者资源没有被充分利用D.社会使用既定的生产资源所能生产商品的最大组合2.学校里一块新停车场的机会成本是( C )A.由此引发的所有费用B.由用于建造停车场的机器设备的折旧大小决定C. 由用于其他用途产生的最大价值决定D.由在停车场停车所需的费用来决定3.下列有关无差异曲线的特点说法正确的是( A )A. 无差异曲线的斜率为负值B. 同一平面中,两条无差异曲线可能会相交于一点C. 无差异曲线向右上方倾斜,并凸向原点D.离原点越远,无差异曲线代表的效用水平越小4. 如果商品A和B是替代的,则A的价格下降将造成( D )A.A的需求曲线向右移动B.A的需求曲线向左移动B.B的需求曲线向右移动D.B的需求曲线向左移动5.两种商品中若其中的一种价格变化时,这两种商品的购买量同时增加或减少,则这两种商品的交叉价格弹性系数为( A )A.负B.正C. 零D. 16.市场均衡要求( D )A.政府平衡供求双方的力量B.价格与数量相等C.价格保持不变D.在某一价格水平上,买者想要购买的数量恰好等于卖者想卖的数量7. 当总效用增加时,边际效用应该( C )A.为正值,并其值不断增加B. 为负值,并其值不断减少C.为正值,并其值不断减少D. 以上任何一种情况都有可能8.当生产函数Q=f ( L,K )的APL为递减时,则MPL( D )。
A.递减且为正B.递减且为负C.为零D.上述情况都可能9.在以下四种情况中,哪一种实现了生产要素的最适组合:( C )A. MPK / PK<MPL/ PLB. MPK / PK>MPL / PLC. MPK / PK=MPL/ PLD. MPK / PK ≥MPL/ PL10.边际成本低于平均成本时( B )。
A.平均成本上升B.平均成本下降C.成本下降D.平均可变成本上升11.长期边际成本曲线呈U型的原因是( A )。
5学原理》(微观)第五版测试题库(04)曼昆经济学原理第五版测试题库(微观)

5学原理》(微观)第五版测试题库(04)曼昆经济学原理第五版测试题库(微观)Chapter 4The Market Forces of Supply and DemandTRUE/FALSE1. Prices allocate a market economy’s scarce resources.ANS: T DIF: 1 REF: 4-0NAT: Analytic LOC: Markets, market failure, and externalities TOP: Market economies MSC: Definitional2. In a market economy, supply and demand determine both the quantity of each good produced and the price at which it is sold.ANS: T DIF: 1 REF: 4-0NAT: Analytic LOC: Markets, market failure, and externalities TOP: Market economies MSC: Definitional3. A market is a group of buyers and sellers of a particular good or service.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Markets MSC: Definitional4. Sellers as a group determine the demand for a product, and buyers as a group determine the supply of aproduct.ANS: F DIF: 1 REF: 4-1NAT: Analytic LOC: Supply and demand TOP: Demand | SupplyMSC: Definitional5. A yard sale is an example of a market.ANS: T DIF: 2 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Markets MSC: Applicative6. A newspaper’s classified ads are an example of a market.ANS: T DIF: 2 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Markets MSC: Applicative7. Most markets in the economy are highly competitive.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Markets MSC: Definitional8. In a competitive market, the quantity of each good produced and the price at which it is sold are notdetermined by any single buyer or seller.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Competitive markets MSC: Definitional9. In a competitive market, there are so few buyers and so few sellers that each has a significant impact on themarket price.ANS: F DIF: 1 REF: 4-1NAT: Analytic LOC: Markets, market failure, and externalities TOP: Competitive markets MSC: Definitional10. In a perfectly competitive market, the goods offered for sale are all exactly the same.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Perfect competition TOP: Perfect competitionMSC: Definitional20211. In a perfectly competitive market, buyers and sellers areprice setters.ANS: F DIF: 1 REF: 4-1NAT: Analytic LOC: Perfect competition TOP: Perfect competitionMSC: Definitional12. All goods and services are sold in perfectly competitive markets.ANS: F DIF: 1 REF: 4-1NAT: Analytic LOC: Perfect competition TOP: Perfect competitionMSC: Definitional13. If a good or service has only one seller, then the seller is called a monopoly.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Monopoly TOP: Monopoly MSC: Definitional14. Monopolists are price takers.ANS: F DIF: 2 REF: 4-1NAT: Analytic LOC: Monopoly TOP: Monopoly MSC: Interpretive15. Local cable TV companies frequently are monopolists.ANS: T DIF: 1 REF: 4-1NAT: Analytic LOC: Monopoly TOP: Monopoly MSC: Definitional16. The quantity demanded of a product is the amount that buyers are willing and able to purchase at a particular price.ANS: T DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Quantity demanded17. The law of demand is true for most goods in the economy.ANS: T DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Law of demand MSC: Definitional18. The law of demand states that, other things equal, when the price of a good rises, the quantity demanded of the good rises, and when the price falls, the quantity demanded falls.ANS: F DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Law of demand MSC: Definitional19. The demand curve is the upward-sloping line relating price and quantity demanded.ANS: F DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Definitional20. Individual demand curves are summed horizontally to obtain the market demand curve.ANS: T DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Market demand curveMSC: Definitional21. The market demand curve shows how the total quantity demanded of a good varies as the income of buyersvaries, while all the other factors that affect how much consumers want to buy are held constant.ANS: F DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Market demand curve22. If something happens to alter the quantity demanded at any given price, then the demand curve shifts.ANS: T DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Definitionalword文档可自由复制编辑204 Chapter 4 /The Market Forces of Supply and Demand23. A movement upward and to the left along a given demand curve is called a decrease in demand..ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Interpretive24. An increase in demand shifts the demand curve to the left.ANS: F DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Definitional25. If the demand for a good falls when income falls, then the good is called an inferior good.ANS: F DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Normal goods MSC: Definitional26. When Mario's income decreases, he buys more pasta. For Mario, pasta is a normal good.ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Inferior goods MSC: Applicative27. A decrease in income will shift the demand curve for an inferior good to the right.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Inferior goods MSC: Interpretive28. An increase in the price of a substitute good will shift the demand curve for a good to the right.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: SubstitutesMSC: Interpretive29. Baseballs and baseball bats are substitute goods.ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Complements MSC: Applicative30. A decrease in the price of a complement will shift the demand curve for a good to the left.ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Complements MSC: Interpretive31. When an increase in the price of one good lowers the demand for another good, the two goods are calledcomplements.ANS: T DIF: 1 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Complements MSC: Definitional32. Cocoa and marshmallows are complements, so a decrease in the price of cocoa will cause an increase in the demand for marshmallows.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Complements MSC: Applicative33. If a pe rson expects the price of socks to increase nextmonth, then that person’s current demand for socks will increase.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: ExpectationsMSC: Applicative34. A decrease in the price of a product and an increase in the number of buyers in the market affect the demand curve in the same general way.ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Interpretive35. Whenever a determinant of demand other than price changes, the demand curve shifts.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Interpretive36. An increase in the price of pizza will shift the demand curve for pizza to the left.ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Applicative37. Public service announcements, mandatory health warnings on cigarette packages, and the prohibition of cigarette advertising on television are all policies aimed at shifting the demand curve for cigarettes to the right. ANS: F DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Demand curve MSC: Applicative38. Most studies have found that tobacco and marijuana are complements rather than substitutes.ANS: T DIF: 2 REF: 4-2NAT: Analytic LOC: Supply and demand TOP: Complements MSC: Applicative39. The quantity supplied of a good or service is the amount that sellers are willing and able to sell at a particularprice.ANS: T DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Quantity suppliedMSC: Definitional40. When the price of a good is high, selling the good is profitable, and so the quantity supplied is large.ANS: T DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Law of supply MSC: Definitional41. When the price of a good is low, selling the good is profitable, and so the quantity supplied is large.ANS: F DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Law of supply MSC: Definitional42. Price cannot fall so low that some sellers choose to supply a quantity of zero.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Quantity suppliedMSC: Interpretive43. The law of supply states that, other things equal, when the price of a good rises, the quantity supplied of the good falls.ANS: F DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Law of supply MSC: Definitional44. The law of supply states that, other things equal, when the price of a good falls, the quantity supplied falls as well.ANS: T DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Law of supply MSC: Definitionalword文档可自由复制编辑206 Chapter 4 /The Market Forces of Supply and Demand45. If a higher price means a greater quantity supplied, then the supply curve slopes upward.ANS: T DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curve MSC: Definitional46. Individual supply curves are summed vertically to obtain the market supply curve.ANS: F DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Market supply curveMSC: Definitional47. The market supply curve shows how the total quantity supplied of a good varies as input prices vary, holding constant all the other factors that influence producers’ decisions about how much to sell.ANS: F DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Market supply curveMSC: Definitional48. If something happens to alter the quantity supplied atany given price, then we move along the fixed supply curve to a new quantity supplied.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curve MSC: Interpretive49. A movement along a supply curve is called a change in supply while a shift of the supply curve is called achange in quantity supplied.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply | Quantity supplied MSC: Interpretive50. A decrease in supply shifts the supply curve to the left.ANS: T DIF: 1 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curve MSC: Definitional51. A reduction in an input price will cause a change in quantity supplied, but not a change in supply.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Input pricesMSC: Interpretive52. An increase in the price of ink will shift the supply curve for pens to the left.ANS: T DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Input pricesMSC: Applicative53. If there is an improvement in the technology used to produce a good, then the supply curve for that good will shift to the left.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: TechnologyMSC: Interpretive54. Advances in production technology typically reduce firms’ costs.ANS: T DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: TechnologyMSC: Interpretive55. If a company making frozen orange juice expects the price of its product to be higher next month, it willsupply more to the market this month.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: ExpectationsMSC: Applicative56. When a seller expects the price of its product to decrease in the future, the seller's supply curve shifts left now. ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: ExpectationsMSC: Interpretive57. An increase in the price of a product and an increase in the number of sellers in the market affect the supplycurve in the same general way.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curveMSC: Interpretive58. Whenever a determinant of supply other than price changes, the supply curve shifts.ANS: T DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curveMSC: Interpretive59. A decrease in the price of pizza will shift the supply curve for pizza to the left.ANS: F DIF: 2 REF: 4-3NAT: Analytic LOC: Supply and demand TOP: Supply curve MSC: Applicative60. Supply and demand together determine the price and quantity of a good sold in a market.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Definitional61. A market’s equilibrium is the point at which the supply and demand curves intersect.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Definitional62. At the equilibrium price, quantity demanded is equal to quantity supplied.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional63. The equilibrium price is the same as the market-clearing price.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional64. At the equilibrium price, buyers have bought all they want to buy, but sellers have not sold all they want to sell.ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional65. The actions of buyers and sellers naturally move marketstoward equilibrium.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional66. When the market price is above the equilibrium price, the quantity of the good demanded exceeds the quantity supplied.ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional67. When the market price is above the equilibrium price, suppliers are unable to sell all they want to sell. ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional68. A surplus is the same as an excess demand.ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: SurplusMSC: Definitionalword文档可自由复制编辑208 Chapter 4 /The Market Forces of Supply and Demand69. Sellers respond to a surplus by cutting their prices.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: SurplusMSC: Definitional70. Price will rise to eliminate a surplus.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Surplus MSC: Interpretive71. When quantity supplied exceeds quantity demanded atmarket price will likely rise in the future to eliminate the surplus.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Surplus MSC: Interpretive72. When the market price is below the equilibrium price, the quantity of the good demanded exceeds the quantity supplied.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional73. When the market price is below the equilibrium price, suppliers are unable to sell all they want to sell. ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional74. A shortage is the same as an excess demand.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: ShortageMSC: Definitional75. Sellers respond to a shortage by cutting their prices.ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: ShortageMSC: Definitional76. Price will rise to eliminate a shortage.ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Shortage MSC: Interpretive77. When quantity demanded exceeds quantity supplied atmarket price will likely rise in the future to eliminate the shortage.ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Shortage MSC: Interpretive78. Surpluses drive price up while shortages drive price down.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Shortage | SurplusMSC: Interpretive79. A shortage will occur at any price below equilibrium price and a surplus will occur at any price aboveequilibrium price.ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Shortage | SurplusMSC: Interpretive80. In a market, the price of any good adjusts until quantity demanded equals quantity supplied.ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Interpretive81. When a supply curve or a demand curve shifts, the equilibrium price and equilibrium quantity change. ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Equilibrium TOP: Equilibrium MSC: Definitional82. Demand refers to the amount buyers wish to buy, whereas the quantity demanded refers to the position of the demand curve.ANS: F DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demandTOP: Demand | Quantity demanded MSC: Definitional83. Supply refers to the position of the supply curve, whereas the quantity supplied refers to the amount supplierswish to sell.ANS: T DIF: 1 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: Supply | Quantity supplied MSC: Definitional84. It is not possible for demand and supply to shift at the same time.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: Supply | DemandMSC: Interpretive85. A decrease in demand will cause a decrease in price, which will cause a decrease in supply.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Interpretive86. An increase in demand will cause an increase in price, which will cause an increase in quantity supplied. ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Interpretive87. An increase in supply will cause a decrease in price, which will cause an increase in demand.ANS: F DIF: 2 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Interpretive88. A decrease in supply will cause an increase in price, whichwill cause a decrease in quantity demanded. ANS: T DIF: 2 REF: 4-4NAT: Analytic LOC: Supply and demand TOP: EquilibriumMSC: Interpretive89. In a market economy, prices are the signals that guide the allocation of scarce resources.ANS: T DIF: 1 REF: 4-5NAT: Analytic LOC: Markets, market failure, and externalities TOP: Market economies MSC: Definitionalword文档可自由复制编辑。
曼昆_微观经济学_原理_第五版_课后习题答案

问题与应用1.描写下列每种情况所面临的权衡取舍:A.一个家庭决定是否买一辆新车。
答:如果买新车就要减少家庭其他方面的开支,如:外出旅行,购置新家具;如果不买新车就享受不到驾驶新车外出的方便和舒适。
B.国会议员决定对国家公园支出多少。
答:对国家公园的支出数额大,国家公园的条件可以得到改善,环境会得到更好的保护。
但同时,政府可用于交通、邮电等其他公共事业的支出就会减少。
C.一个公司总裁决定是否新开一家工厂。
答:开一家新厂可以扩大企业规模,生产更多的产品。
但可能用于企业研发的资金就少了。
这样,企业开发新产品、利用新技术的进度可能会减慢。
D.一个教授决定用多少时间备课。
答:教授若将大部分时间用于自己研究,可能会出更多成果,但备课时间减少影响学生授课质量。
E.一个刚大学毕业的学生决定是否去读研究生。
答:毕业后参加工作,可即刻获取工资收入;但继续读研究生,能接受更多知识和未来更高收益。
2.你正想决定是否去度假。
度假的大部分成本((机票、旅馆、放弃的工资))都用美元来衡量,但度假的收益是心理的。
你将如何比较收益与成本呢??答:这种心理上的收益可以用是否达到既定目标来衡量。
对于这个行动前就会作出的既定目标,我们一定有一个为实现目标而愿意承担的成本范围。
在这个可以承受的成本范围内,度假如果满足了既定目标,如:放松身心、恢复体力等等,那么,就可以说这次度假的收益至少不小于它的成本。
3.你正计划用星期六去从事业余工作,但一个朋友请你去滑雪。
去滑雪的真实成本是什么?现在假设你已计划这天在图书馆学习,这种情况下去滑雪的成本是什么?请解释之。
答:去滑雪的真实成本是周六打工所能赚到的工资,我本可以利用这段时间去工作。
如果我本计划这天在图书馆学习,那么去滑雪的成本是在这段时间里我可以获得的知识。
4.你在篮球比赛的赌注中赢了100美元。
你可以选择现在花掉它或在利率为55%的银行中存一年。
现在花掉100美元的机会成本是什么呢?答:现在花掉100 美元的机会成本是在一年后得到105 美元的银行支付(利息+本金)。
曼昆《经济学原理》(微观)第五版测试题库 (05)

Chapter 5Elasticity and Its ApplicationTRUE/FALSE1. Elasticity measures how responsive quantity is to changes in price.ANS: T DIF: 1 REF: 5-0 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional2. Measures of elasticity enhance our ability to study the magnitudes of changes.ANS: T DIF: 1 REF: 5-0 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional3. The demand for bread is likely to be more elastic than the demand for solid-gold bread plates.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive4. In general, demand curves for necessities tend to be price elastic.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive5. In general, demand curves for luxuries tend to be price elastic.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive6. Necessities tend to have inelastic demands, whereas luxuries have elastic demands.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive7. Goods with close substitutes tend to have more elastic demands than do goods without close substitutes. ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive8. The demand for Rice Krispies is more elastic than the demand for cereal in general.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive9. The demand for soap is more elastic than the demand for Dove soap.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive10. The demand for gasoline will respond more to a change in price over a period of five weeks than over a periodof five years.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive11. Even the demand for a necessity such as gasoline will respond to a change in price, especially over a longertime horizon.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive12. The price elasticity of demand is defined as the percentage change in quantity demanded divided by thepercentage change in price.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional13. The price elasticity of demand is defined as the percentage change in price divided by the percentage changein quantity demanded.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional288Chapter 5 /Elasticity and Its Application ❖289 14. Suppose that when the price rises by 20% for a particular good, the quantity demanded of that good falls by10%. The price elasticity of demand for this good is equal to 2.0.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Analytical15. Suppose that when the price rises by 10% for a particular good, the quantity demanded of that good falls by20%. The price elasticity of demand for this good is equal to 2.0.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Analytical16. If the price of calculators increases by 15 percent and the quantity demanded per week falls by 45 percent as aresult, then the price elasticity of demand is 3.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Applicative17. Demand is inelastic if the price elasticity of demand is greater than 1.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Inelastic demand MSC: Definitional18. A linear, downward-sloping demand curve has a constant elasticity but a changing slope.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive19. Price elasticity of demand along a linear, downward-sloping demand curve increases as price falls.ANS: F DIF: 3 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive20. If the price elasticity of demand is equal to 0, then demand is unit elastic.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional21. If the price elasticity of demand is equal to 1, then demand is unit elastic.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Definitional22. Demand for a good is said to be inelastic if the quantity demanded increases substantially when the price fallsby a small amount.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Inelastic demand MSC: Definitional23. The midpoint method is used to calculate elasticity between two points because it gives the same answerregardless of the direction of the change.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Midpoint method MSC: Interpretive24. The flatter the demand curve that passes through a given point, the more inelastic the demand.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive25. The flatter the demand curve that passes through a given point, the more elastic the demand.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive26. If demand is perfectly inelastic, the demand curve is vertical, and the price elasticity of demand equals 0. ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Perfectly inelastic demand MSC: Interpretive27. If demand is perfectly elastic, the demand curve is horizontal, and the price elasticity of demand equals 1. ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Perfectly elastic demand MSC: Interpretive290 ❖Chapter 5 /Elasticity and Its Application28. Along the elastic portion of a linear demand curve, total revenue rises as price rises.ANS: F DIF: 3 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Total revenue | Price elasticity of demandMSC: Interpretive29. If a firm is facing elastic demand, then the firm should decrease price to increase revenue.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Total revenue | Price elasticity of demandMSC: Applicative30. If a firm is facing inelastic demand, then the firm should decrease price to increase revenue.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Total revenue | Price elasticity of demandMSC: Applicative31. When demand is inelastic, a decrease in price increases total revenue.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Inelastic demand | Total revenue MSC: Interpretive32. The income elasticity of demand is defined as the percentage change in quantity demanded divided by thepercentage change in income.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Income elasticity of demand MSC: Definitional33. The income elasticity of demand is defined as the percentage change in quantity demanded divided by thepercentage change in price.ANS: F DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Income elasticity of demand MSC: Definitional34. Normal goods have negative income elasticities of demand, while inferior goods have positive incomeelasticities of demand.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Income elasticity of demand MSC: Interpretive35. If the income elasticity of demand for a good is negative, then the good must be an inferior good.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Income elasticity of demand MSC: Interpretive36. If the cross-price elasticity of demand for two goods is negative, then the two goods are substitutes. ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive37. If the cross-price elasticity of demand for two goods is negative, then the two goods are complements. ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive38. Cross-price elasticity of demand measures how the quantity demanded of one good changes as the price ofanother good changes.ANS: T DIF: 1 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: Definitional39. Cross-price elasticity is used to determine whether goods are inferior or normal goods.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive40. Cross-price elasticity is used to determine whether goods are substitutes or complements.ANS: T DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: InterpretiveChapter 5 /Elasticity and Its Application ❖291 41. The cross-price elasticity of garlic salt and onion salt is -2, which indicates that garlic salt and onion salt aresubstitutes.ANS: F DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive42. Price elasticity of supply measures how much the quantity supplied responds to changes in the price.ANS: T DIF: 1 REF: 5-2 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of supply MSC: Definitional43. Supply and demand both tend to be more elastic in the long run and more inelastic in the short run.ANS: T DIF: 2 REF: 5-1 | 5-2 NAT: AnalyticLOC: Elasticity TOP: Price elasticities of demand and supplyMSC: Interpretive44. If the price elasticity of supply is 2 and the quantity supplied decreases by 6%, then the price must havedecreased by 3%.ANS: T DIF: 2 REF: 5-2 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of supply MSC: Applicative45. Supply is said to be inelastic if the quantity supplied responds substantially to changes in the price, and elasticif the quantity supplied responds only slightly to price.ANS: F DIF: 1 REF: 5-2 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of supply MSC: Definitional46. Supply tends to be more elastic in the short run and more inelastic in the long run.ANS: F DIF: 2 REF: 5-2 NAT: AnalyticTOP: Price elasticity of supply MSC: Interpretive47. When the price of knee braces increased by 25 percent, the Brace Yourself Company increased its quantitysupplied of knee braces per week by 75 percent. BYC's price elasticity of supply of knee braces is 0.33. ANS: F DIF: 2 REF: 5-2 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of supply MSC: Applicative48. If a supply curve is horizontal, then supply is said to be perfectly elastic, and the price elasticity of supplyapproaches infinity.ANS: T DIF: 2 REF: 5-2 NAT: AnalyticLOC: Elasticity TOP: Perfectly elastic supply MSC: Interpretive49. A government program that reduces land under cultivation hurts farmers but helps consumers.ANS: F DIF: 2 REF: 5-3 NAT: AnalyticLOC: Elasticity TOP: Total revenue MSC: Applicative50. OPEC failed to maintain a high price of oil in the long run, partly because both the supply of oil and thedemand for oil are more elastic in the long run than in the short run.ANS: T DIF: 2 REF: 5-3 NAT: AnalyticLOC: Elasticity TOP: OPEC | Price elasticity of demand | Price elasticity of supplyMSC: Applicative51. Drug interdiction, which reduces the supply of drugs, may decrease drug-related crime because the demand fordrugs is inelastic.ANS: F DIF: 2 REF: 5-3 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand MSC: Applicative292 ❖Chapter 5 /Elasticity and Its ApplicationSHORT ANSWER1. Consider the following pairs of goods. For which of the two goods would you expect the demand to be moreprice elastic? Why?a.water or diamondsb.insulin or nasal decongestant sprayc.food in general or breakfast cereald.gasoline over the course of a week or gasoline over the course of a yeare.personal computers or IBM personal computersANS:a.Diamonds are luxuries, and water is a necessity. Therefore, diamonds have the more elastic demand.b.Insulin has no close substitutes, but decongestant spray does. Therefore, nasal decongestant spray has themore elastic demand.c.Breakfast cereal has more substitutes than does food in general. Therefore, breakfast cereal has the moreelastic demand.d.The longer the time period, the more elastic demand is. Therefore, gasoline over the course of a year hasthe more elastic demand.e.There are more substitutes for IBM personal computers than there are for personal computers. Therefore,IBM personal computers have the more elastic demand.DIF: 2 REF: 5-1 NAT: Analytic LOC: ElasticityTOP: Price elasticity of demand MSC: ApplicativeChapter 5 /Elasticity and Its Application ❖ 2932. You own a small town movie theatre. You currently charge $5 per ticket for everyone who comes to yourmovies. Your friend who took an economics course in college tells you that there may be a way to increase1020304050607080901001234567891051015202530354045505560657012345678910a.What is your current total revenue for both groups? b.The elasticity of demand is more elastic in which market? c.Which market has the more inelastic demand? d.What is the elasticity of demand between the prices of $5 and $2 in the adult market? Is this elastic or inelastic? e.What is the elasticity of demand between $5 and $2 in the children's market? Is this elastic or inelastic?f. Given the graphs and what your friend knows about economics, he recommends you increase theprice of adult tickets to $8 each and lower the price of a child's ticket to $3. How much could youincrease total revenue if you take his advice? ANS:a. Total revenue from children's tickets is $100 and from adult tickets is $250. Total revenue from allsales would be $350.b. The demand for children's tickets is more elastic.c. The adult ticket market has the more inelastic demand.d. The elasticity of demand between $5 and $2 is 0.26, which is inelastic.e. The elasticity of demand between $5 and $2 is 1.0, which is unit elastic.f. Total revenue in the adult market would be $320. Total revenue in the children’s market wouldbe $120, so total revenue for both groups would be $440. $440 - $350 is an increase in totalrevenue of $90.DIF: 2 REF: 5-1 NAT: AnalyticLOC: Elasticity TOP: Price elasticity of demand | Total revenue MSC: Applicative294 ❖Chapter 5 /Elasticity and Its Application3. Use the graph shown to answer the following questions. Put the correct letter(s) in the blank.a.The elastic section of the graph is represented by section from _______.b.The inelastic section of the graph is represented by section from _______.c.The unit elastic section of the graph is represented by section _______.d.The portion of the graph in which a decrease in price would cause total revenue to fall would befrom _________.e.The portion of the graph in which a decrease in price would cause total revenue to rise would befrom _________.f.The portion of the graph in which a decrease in price would not cause a change in total revenuewould be _________.g.The section of the graph in which total revenue would be at a maximum would be _______.h.The section of the graph in which elasticity is greater than 1 is _______.i.The section of the graph in which elasticity is equal to 1 is ______.j.The section of the graph in which elasticity is less than 1 is _______.ANS:a. A to Bb. B to Cc.Bd. B to Ce. A to Bf.Bg.Bh. A to Bi.Bj. B to CDIF: 2 REF: 5-1 NAT: Analytic LOC: ElasticityTOP: Price elasticity of demand | Total revenue MSC: ApplicativeChapter 5 /Elasticity and Its Application ❖ 2954. Using the midpoint method, compute the elasticity of demand between points A and B. Is demand along thisportion of the curve elastic or inelastic? Interpret your answer with regard to price and quantity demanded. Now compute the elasticity of demand between points B and C. Is demand along this portion of the curve elastic or inelastic?100200300400500600700800900246810121416182022ANS:In the section of the demand curve from A to B, the elasticity of demand would be 2.5. This would be an elastic portion of the curve. This would mean that for every 1 percent change in price, quantity demanded would change by2.5 percent.In the section of the demand curve from B to C, the elasticity of demand would be .75. This would be an inelastic portion of the curve. This would mean that for every 1 percent change in price, quantity demanded would change by 0.75 percent.DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Applicative 5. When the Shaffers had a monthly income of $4,000, they usually ate out 8 times a month. Now that the couplemakes $4,500 a month, they eat out 10 times a month. Compute the couple's income elasticity of demand using the midpoint method. Explain your answer. (Is a restaurant meal a normal or inferior good to thecouple?)ANS:The income elasticity of demand for the Shaffers is 1.89. Since the income elasticity of demand is positive, eating out would be interpreted as a normal good.DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Income elasticity of demandMSC: Applicative 6. Recently, in Smalltown, the price of Twinkies fell from $0.80 to $0.70. As a result, the quantity demanded ofHo-Ho's decreased from 120 to 100. What would be the appropriate elasticity to compute? Using the midpoint method, compute this elasticity. What does your answer tell you?ANS:The appropriate elasticity to compute would be cross-price elasticity. The cross-price elasticity for this example would be 1.36. The two goods are substitutes because the cross-price elasticity is positive.DIF: 2 REF: 5-1NAT: Analytic LOC: ElasticityTOP: Cross-price elasticity of demand MSC: Applicative296 ❖Chapter 5 /Elasticity and Its ApplicationSec00 - Elasticity and Its ApplicationMULTIPLE CHOICE1. In general, elasticity is a measure ofa.the extent to which advances in technology are adopted by producers.b.the extent to which a market is competitive.c.how firms’ profits respond to changes in market prices.d.how much buyers and sellers respond to changes in market conditions.ANS: D DIF: 1 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: Definitional2. Elasticity isa. a measure of how much buyers and sellers respond to changes in market conditions.b.the study of how the allocation of resources affects economic well-being.c.the maximum amount that a buyer will pay for a good.d.the value of everything a seller must give up to produce a good.ANS: A DIF: 1 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: Definitional3. When studying how some event or policy affects a market, elasticity provides information on thea.equity effects on the market by identifying the winners and losers.b.magnitude of the effect on the market.c.speed of adjustment of the market in response to the event or policy.d.number of market participants who are directly affected by the event or policy.ANS: B DIF: 2 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: Interpretive4. How does the concept of elasticity allow us to improve upon our understanding of supply and demand?a.Elasticity allows us to analyze supply and demand with greater precision than would be the case inthe absence of the elasticity concept.b.Elasticity provides us with a better rationale for statements such as “an increase in x will lead to adecrease in y” than we would have in the absence of the elasticity concept.c.Without elasticity, we would not be able to address the direction in which price is likely to move inresponse to a surplus or a shortage.d.Without elasticity, it is very difficult to assess the degree of competition within a market.ANS: A DIF: 2 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: Interpretive5. When consumers face rising gasoline prices, they typicallya.reduce their quantity demanded more in the long run than in the short run.b.reduce their quantity demanded more in the short run than in the long run.c.do not reduce their quantity demanded in the short run or the long run.d.increase their quantity demanded in the short run but reduce their quantity demanded in the longrun.ANS: A DIF: 2 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: Applicative6. A 10 percent increase in gasoline prices reduces gasoline consumption by abouta. 6 percent after one year and 2.5 percent after five years.b. 2.5 percent after one year and 6 percent after five years.c.10 percent after one year and 20 percent after five years.d.0 percent after one year and 1 percent after five years.ANS: B DIF: 2 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: ApplicativeChapter 5 /Elasticity and Its Application ❖2977. Which of the following statements about the consumers’ responses to rising gasoline prices is correct?a.About 10 percent of the long-run reduction in quantity demanded arises because people drive lessand about 90 percent arises because they switch to more fuel-efficient cars.b.About 90 percent of the long-run reduction in quantity demanded arises because people drive lessand about 10 percent arises because they switch to more fuel-efficient cars.c.About half of the long-run reduction in quantity demanded arises because people drive less andabout half arises because they switch to more fuel-efficient cars.d.Because gasoline is a necessity, consumers do not decrease their quantity demanded in either theshort run or the long run.ANS: C DIF: 2 REF: 5-0NAT: Analytic LOC: Elasticity TOP: Elasticity MSC: ApplicativeSec01 - Elasticity and Its Application - The Elasticity of DemandMULTIPLE CHOICE1. The price elasticity of demand measures how mucha.quantity demanded responds to a change in price.b.quantity demanded responds to a change in income.c.price responds to a change in demand.d.demand responds to a change in supply.ANS: A DIF: 1 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Definitional2. The price elasticity of demand measuresa.buyers’ responsiveness to a change in the price of a good.b.the extent to which demand increases as additional buyers enter the market.c.how much more of a good consumers will demand when incomes rise.d.the movement along a supply curve when there is a change in demand.ANS: A DIF: 1 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Definitional3. The price elasticity of demand for a good measures the willingness ofa.consumers to buy less of the good as price rises.b.consumers to avoid monopolistic markets in favor of competitive markets.c.firms to produce more of a good as price rises.d.firms to cater to the tastes of consumers.ANS: A DIF: 1 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive4. Which of the following statements about the price elasticity of demand is correct?a.The price elasticity of demand for a good measures the willingness of buyers of the good to buyless of the good as its price increases.b.Price elasticity of demand reflects the many economic, psychological, and social forces that shapeconsumer tastes.c.Other things equal, if good x has close substitutes and good y does not have close substitutes, thenthe demand for good x will be more elastic than the demand for good y.d.All of the above are correct.ANS: D DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive5. For a good that is a necessity,a.quantity demanded tends to respond substantially to a change in price.b.demand tends to be inelastic.c.the law of demand does not apply.d.All of the above are correct.ANS: B DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive6. Goods with many close substitutes tend to havea.more elastic demands.b.less elastic demands.c.price elasticities of demand that are unit elastic.d.income elasticities of demand that are negative.ANS: A DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive7. Which of the following is likely to have the most price inelastic demand?a.mint-flavored toothpasteb.toothpastec.Colgate mint-flavored toothpasted. a generic mint-flavored toothpasteANS: B DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Applicative8. Which of the following is likely to have the most price inelastic demand?a.white chocolate chip with macadamia nut cookiesb.Mrs. Field’s chocolate chip cookiesk chocolate chip cookiesd.cookiesANS: D DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Applicative9. If the price of natural gas rises, when is the price elasticity of demand likely to be the highest?a.immediately after the price increaseb.one month after the price increasec.three months after the price increased.one year after the price increaseANS: D DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Applicative10. If the price of milk rises, when is the price elasticity of demand likely to be the lowest?a.immediately after the price increaseb.one month after the price increasec.three months after the price increased.one year after the price increaseANS: A DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Applicative11. For a good that is a luxury, demanda.tends to be inelastic.b.tends to be elastic.c.has unit elasticity.d.cannot be represented by a demand curve in the usual way.ANS: B DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive12. For a good that is a necessity, demanda.tends to be inelastic.b.tends to be elastic.c.has unit elasticity.d.cannot be represented by a demand curve in the usual way.ANS: A DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive13. A person who takes a prescription drug to control high cholesterol most likely has a demand for that drug thatisa.inelastic.b.unit elastic.c.elastic.d.highly responsive to changes in income.ANS: A DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive14. The demand for Neapolitan ice cream is likely quite elastic becausea.ice cream must be eaten quickly.b.this particular flavor of ice cream is viewed as a necessity by many ice-cream lovers.c.the market is broadly defined.d.other flavors of ice cream are good substitutes for this particular flavor.ANS: D DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive15. The demand for Werthers candy is likelya.elastic because candy is expensive relative to other snacks.b.elastic because there are many close substitutes for Werthers.c.elastic because Werthers are regarded as a necessity by many people.d.inelastic because it is usually eaten quickly, making the relevant time horizon short.ANS: B DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive16. There are very few, if any, good substitutes for motor oil. Therefore,a.the demand for motor oil would tend to be inelastic.b.the demand for motor oil would tend to be elastic.c.the demand for motor oil would tend to respond strongly to changes in prices of other goods.d.the supply of motor oil would tend to respon d strongly to changes in people’s tastes for large carsrelative to their tastes for small cars.ANS: A DIF: 2 REF: 5-1NAT: Analytic LOC: Elasticity TOP: Price elasticity of demandMSC: Interpretive。
曼昆《经济学原理》(微观)第五版测试题库 (05)

曼昆《经济学原理》(微观)第五版测试题库(05)Chapter 5 Elasticity and Its Application TRUE/FALSE 1. Elasticity measures how responsive quantity is to changes in : T DIF: 1 REF: 5-0 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional 2. Measures of elasticity enhance our ability to study the magnitudes of : T DIF: 1 REF: 5-0 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional 3. The demand for bread is likely to be more elastic than the demand for solid-gold bread : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive 4. In general, demand curves for necessities tend to be price : F DIF: 1 REF:5-1 LOC: Elasticity TOP: Price elasticity of demand 5. In general, demand curves for luxuries tend to be price : T DIF: 1 REF: 5-1 LOC: Elasticity TOP: Price elasticity of demand NAT: Analytic MSC: InterpretiveNAT: Analytic MSC: Interpretive 6. Necessities tend to have inelastic demands, whereas luxuries have elastic : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive7. Goods with close substitutes tend to have more elastic demands than do goods without close : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive8. The demand for Rice Krispies is more elastic than the demand for cereal in : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive9. The demand for soap is more elastic than the demand for Dove : FDIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive10. The demand for gasoline will respond more to a change in price over a period of five weeks than over a period of five : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive 11. Even the demand for a necessity such as gasoline will respond to a change in price, especially over a longer time : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive12. The price elasticity of demand is defined as the percentage change in quantity demanded divided by the percentage change in : T DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional13. The price elasticity of demand is defined as the percentage change in price divided by thepercentage change in quantity : F DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional288 Chapter 5 /Elasticity and Its Application ? 289 14. Suppose that when the price rises by 20% for a particular good, the quantity demanded of that good falls by 10%. The price elasticity of demand for this good is equal to : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Analytical 15. Suppose that when the price rises by 10% for a particular good, the quantity demanded of that good falls by 20%. The price elasticity of demand for this good is equal to : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Analytical 16. If the price of calculators increases by 15 percent and the quantity demanded per week falls by 45 percent as a result,then the price elasticity of demand is : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Applicative17. Demand is inelastic if the price elasticity of demand is greater than : F DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Inelastic demand MSC: Definitional18. A linear, downward-sloping demand curve has a constant elasticity but a changing : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive19. Price elasticity of demand along a linear, downward-sloping demand curve increases as price : F DIF: 3 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive 20. If the price elasticity of demand is equal to 0, then demand is unit : F DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC:Definitional21. If the price elasticity of demand is equal to 1, then demand is unit : T DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Definitional22. Demand for a good is said to be inelastic if the quantity demanded increases substantially when the price falls by a small : F DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Inelastic demand MSC: Definitional23. The midpoint method is used to calculate elasticity between two points because it gives the same answer regardless of the direction of the : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Midpoint method MSC: Interpretive24. The flatter the demand curve that passes through a given point, the more inelastic the : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive25. Theflatter the demand curve that passes through a given point, the more elastic the : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Interpretive26. If demand is perfectly inelastic, the demand curve is vertical, and the price elasticity of demand equals : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Perfectly inelastic demand MSC: Interpretive27. If demand is perfectly elastic, the demand curve is horizontal, and the price elasticity of demand equals : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Perfectly elastic demand MSC: Interpretive290 ? Chapter 5 /Elasticity and Its Application 28. Along the elastic portion of a linear demand curve, total revenue rises as price : F DIF: 3 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Total revenue | Price elasticity of demand MSC: Interpretive29. If a firm is facing elastic demand, then the firm should decrease price to increase : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Total revenue | Price elasticity of demand MSC: Applicative 30. If a firm is facing inelastic demand, then the firm should decrease price to increase : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Total revenue | Price elasticity of demand MSC: Applicative31. When demand is inelastic, a decrease in price increases total : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Inelastic demand | Total revenue MSC: Interpretive32. The income elasticity of demand is defined as the percentage change in quantity demanded divided by the percentage change in : T DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Income elasticity of demand MSC: Definitional 33. The income elasticity of demand isdefined as the percentage change in quantity demanded divided by the percentage change in : F DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Income elasticity of demand MSC: Definitional34. Normal goods have negative income elasticities of demand, while inferior goods have positive income elasticities of : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Income elasticity of demand MSC: Interpretive 35. If the income elasticity of demand for a good is negative, then the good must be an inferior : T DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Income elasticity of demand MSC: Interpretive36. If the cross-price elasticity of demand for two goods is negative, then the two goods are : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive37. If the cross-price elasticity of demand for twogoods is negative, then the two goods are : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive38. Cross-price elasticity of demand measures how the quantity demanded of one good changes as the price of another good : T DIF: 1 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Definitional39. Cross-price elasticity is used to determine whether goods are inferior or normal : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive40. Cross-price elasticity is used to determine whether goods are substitutes or : T DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive Chapter 5 /Elasticity and Its Application ? 291 41. The cross-price elasticity of garlic saltand onion salt is -2, which indicates that garlic salt and onion salt are : F DIF: 2 REF: 5-1 NAT: Analytic LOC: Elasticity TOP: Cross-price elasticity of demand MSC: Interpretive42. Price elasticity of supply measures how much the quantity supplied responds to changes in the : T DIF: 1 REF: 5-2 NAT: Analytic LOC: Elasticity TOP: Price elasticity of supply MSC: Definitional43. Supply and demand both tend to be more elastic in the long run and more inelastic in the short : T DIF: 2 REF: 5-1 | 5-2 NAT: Analytic LOC: Elasticity TOP: Price elasticities of demand and supply MSC: Interpretive 44. If the price elasticity of supply is 2 and the quantity supplied decreases by 6%, then the price must have decreased by 3%.ANS: T DIF: 2 REF: 5-2 NAT: Analytic LOC: Elasticity TOP: Price elasticity of supply MSC: Applicative 45. Supply is said to be inelastic if thequantity supplied responds substantially to changes in the price, and elastic if the quantity supplied responds only slightly to : F DIF: 1 REF: 5-2 NAT: Analytic LOC: Elasticity TOP: Price elasticity of supply MSC: Definitional46. Supply tends to be more elastic in the short run and more inelastic in the long : F DIF: 2 REF: 5-2 NAT: Analytic TOP: Price elasticity of supply MSC: Interpretive47. When the price of knee braces increased by 25 percent, the Brace Yourself Company increased its quantity supplied of knee braces per week by 75 percent. BYC’s price elasticity of supply of knee braces is : F DIF: 2 REF: 5-2 NAT: Analytic LOC: Elasticity TOP: Price elasticity of supply MSC: Applicative 48. If a supply curve is horizontal, then supply is said to be perfectly elastic, and the price elasticity of supply approaches : T DIF: 2 REF: 5-2 NAT:Analytic LOC: Elasticity TOP: Perfectly elastic supply MSC: Interpretive49. A government program that reduces land under cultivation hurts farmers but helps : F DIF: 2 REF: 5-3 NAT: Analytic LOC: Elasticity TOP: Total revenue MSC: Applicative50. OPEC failed to maintain a high price of oil in the long run, partly because both the supply of oil and the demand for oil are more elastic in the long run than in the short : T DIF: 2 REF: 5-3 NAT: Analytic LOC: Elasticity TOP: OPEC | Price elasticity of demand | Price elasticity of supply MSC: Applicative51. Drug interdiction, which reduces the supply of drugs, may decrease drug-related crime because the demand for drugs is : F DIF: 2 REF: 5-3 NAT: Analytic LOC: Elasticity TOP: Price elasticity of demand MSC: Applicative292 ? Chapter 5 /Elasticity and Its ApplicationSHORT ANSWER1. Consider the following pairs of goods. For which of the two goods would you expect the demand to be more price elastic? Why? a. water or diamonds b. insulin or nasal decongestant spray c. food in general or breakfast cereal d. gasoline over the course of a week or gasoline over the course of a year e. personal computers or IBM personal computers ANS: a. Diamonds are luxuries, and water is a necessity. Therefore, diamonds have the more elastic demand. b. Insulin has no close substitutes, but decongestant spray does. Therefore, nasal decongestant spray has the more elastic demand. c. Breakfast cereal has more substitutes than does food in general. Therefore, breakfast cereal has the more elastic demand.d. The longer the time period, the more elastic demand is. Therefore, gasoline over the course of a year has the moreelastic demand. e. There are more substitutes for IBM personal computers than there are for personal computers. Therefore, IBM personal computers have the more elastic demand. DIF: 2 REF: 5-1 TOP: Price elasticity of demand NAT: Analytic MSC: Applicative LOC: ElasticityChapter 5 /Elasticity and Its Application ? 293 2. You own a small town movie theatre. You currently charge $5 per ticket for everyone who comes to your movies. Your friend who took an economics course in college tells you that there may be a way to increase your total revenue. Given the demand curves shown, answer the following questions. 10987654321102030405060708090100Qu antityPriceAdult Demand 10987654321510152025303540455055606570QuantityPriceChild Demanda. b. c. d.e. f. What is your current total revenue for both groups? The elasticity of demand is more elastic in which market? Which market has the more inelastic demand? What is the elasticity of demand between the prices of $5 and $2 in the adult market? Is this elastic or inelastic? What is the elasticity of demand between $5 and $2 in the children’s market? Is this elastic or inelastic? Given the graphs and what your friend knows about economics, he recommends you increase the price of adult tickets to $8 each and lower the price of a child’s ticket to $3. How much could you increase total revenue if you take his advice? ANS: a. Total revenue from children’s tickets is $100 and from adult tickets is $250. Total revenue from all sales would be $350. b. The demand for children’s tickets is moreelastic. c. The adult ticket market has the more inelastic demand. d. The elasticity of demand between $5 and $2 is , which is inelastic. e. The elasticity of demand between $5 and $2 is , which is unit elastic. f. Total revenue in the adult market would be $320. Total revenue in the children’s market would be $120, so total revenue for both groups would be $440. $440 - $350 is an increase in total revenue of $90. DIF: 2 REF: 5-1 NAT: Analytic TOP: Price elasticity of demand | Total revenue LOC: Elasticity MSC: Applicative 294 ? Chapter 5 /Elasticity and Its Application 3. Use the graph shown to answer the following questions. Put the correct letter(s) in the blank. APriceBDemandCQuantity a.b. c. d. The elastic section of the graph is represented by section from _______. The inelastic section of the graphis represented by section from _______. The unit elastic section of the graph is represented by section _______. The portion of the graph in which a decrease in price would cause total revenue to fall would be from _________. e. The portion of the graph in which a decrease in price would cause total revenue to rise would be from _________. f. The portion of the graph in which a decrease in price would not cause a change in total revenue would be _________. g. The section of the graph in which total revenue would be at a maximum would be _______. h. The section of the graph in which elasticity is greater than 1 is _______. i. The section of the graph in which elasticity is equal to 1 is ______. j. The section of the graph in which elasticity is less than 1 is _______.A toB B toC B B to C A to B B B A to BB B toC LOC: Elasticity MSC:Applicative ANS: a. b. c. d. e. f.g. h. i. j. DIF: 2 REF: 5-1 NAT: Analytic TOP: Price elasticity of demand | Total revenue Chapter 5 /Elasticity and Its Application ? 295 4. Using the midpoint method, compute the elasticity of demand between points A and B. Is demand along this portion of the curve elastic or inelastic? Interpret your answer with regard to price and quantity demanded. Now compute the elasticity of demand between points B and C. Is demand along this portion of the curve elastic or inelastic? Price222018161412108642CBADemand1 00200300400500600700800900QuantityA NS: In the section of the demand curve from A to B, the elasticity of demand would be This would be an elastic portion of the curve. This would mean that for every 1 percent change in price, quantity demanded would change bypercent. In the section of the demand curve from B to C, the elasticity of demand would be .75. This would be an inelastic portion of the curve. This would mean that for every 1 percent change in price, quantity demanded would change by percent.DIF: 2 REF: 5-1 TOP: Price elasticity of demand 5. NAT: Analytic MSC: Applicative LOC: Elasticity When the Shaffers had a monthly income of $4,000, they usually ate out 8 times a month. Now that the couple makes $4,500 a month, they eat out 10 times a month. Compute the couple’s income elasticity of demand using the midpoint method. Explain your answer. (Is a restaurant meal a normal or inferior good to the couple?)ANS: The income elasticity of demand for the Shaffers is Since the income elasticity of demand is positive, eating out would be interpreted as a normal good.DIF: 2 REF: 5-1 TOP:Income elasticity of demand 6. NAT: Analytic MSC: Applicative LOC: Elasticity Recently, in Smalltown, the price of Twinkies fell from $ to $ As a result, the quantity demanded of Ho-Ho’s decreased from 120 to 100. What would be the appropriate elasticity to compute? Using the midpoint method, compute this elasticity. What does your answer tell you?ANS: The appropriate elasticity to compute would be cross-price elasticity. The cross-price elasticity for this example would be The two goods are substitutes because the cross-price elasticity is positive.DIF: 2 REF: 5-1 TOP: Cross-price elasticity of demand NAT: Analytic MSC: Applicative LOC: Elasticity 296 ? Chapter 5 /Elasticity and Its Application Sec00 - Elasticity and Its Application MULTIPLE CHOICE1. In general, elasticity is a measure of a. the extentto which advances in technology are adopted by producers. b. the extent to which a market is competitive. c. how firms’profits respond to changes in market prices. d. how much buyers and sellers respond to changes in market conditions. DIF: 1 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Definitional ANS: D NAT: Analytic 2. Elasticity is a. a measure of how much buyers and sellers respond to changes in market conditions. b. the study of how the allocation of resources affects economic well-being. c. the maximum amount that a buyer will pay for a good.d. the value of everything a seller must give up to produce a good. DIF: 1 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Definitional ANS: A NAT: Analytic 3. When studying how some event or policyaffects a market, elasticity provides information on the a. equity effects on the market by identifying the winners and losers. b. magnitude of the effect on the market. c. speed of adjustment of the market in response to the event or policy.d. number of market participants who are directly affected by the event or policy. DIF: 2 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Interpretive ANS: B NAT: Analytic 4. How does the concept of elasticity allow us to improve upon our understanding of supply and demand? a. Elasticity allows us to analyze supply and demand with greater precision than would be the case in the absence of the elasticity concept. b. Elasticity provides us with a better rationale for statements such as “an increase in x will lead to a decrease in y” than we would have in the absence of the elasticityconcept. c. Without elasticity, we would not be able to address the direction in which price is likely to move in response to a surplus or a shortage. d. Without elasticity, it is very difficult to assess the degree of competition within a market. DIF: 2 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Interpretive ANS: A NAT: Analytic 5. When consumers face rising gasoline prices, they typically a. reduce their quantity demanded more in the long run than in the short run. b. reduce their quantity demanded more in the short run than in the long run. c. do not reduce their quantity demanded in the short run or the long run. d. increase their quantity demanded in the short run but reduce their quantity demanded in the long run. DIF: 2 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Applicative ANS: A NAT:Analytic 6. A 10 percent increase in gasoline prices reduces gasoline consumption by about a. 6 percent after one year and percent after five years. b. percent after one year and 6 percent after five years. c. 10 percent after one year and 20 percent after five years. d. 0 percent after one year and 1 percent after five years. DIF: 2 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Applicative ANS: B NAT: Analytic Chapter 5 /Elasticity and Its Application ? 297 7. Which of the following statements about the consumers’responses to rising gasoline prices is correct? a. About 10 percent of the long-run reduction in quantity demanded arises because people drive less and about 90 percent arises because they switch to more fuel-efficient cars. b. About 90 percent of the long-run reduction in quantity demanded arises becausepeople drive less and about 10 percent arises because they switch to more fuel-efficient cars. c. About half of the long-run reduction in quantity demanded arises because people drive less and about half arises because they switch to more fuel-efficient cars. d. Because gasoline is a necessity, consumers do not decrease their quantity demanded in either the short run or the long run. DIF: 2 LOC: Elasticity REF: 5-0 TOP: Elasticity MSC: Applicative ANS: C NAT: Analytic Sec01 - Elasticity and Its Application - The Elasticity of Demand MULTIPLE CHOICE1. The price elasticity of demand measures how much a. quantity demanded responds to a change in price. b. quantity demanded responds to a change in income. c. price responds to a change in demand. d. demand responds to a change in supply. DIF: 1 LOC:Elasticity ANS: A NAT: Analytic MSC: Definitional2. REF: 5-1 TOP: Price elasticity of demand The price elasticity of demand measures a. buyers’responsiveness to a change in the price of a good. b. the extent to which demand increases as additional buyers enter the market. c. how much more of a good consumers will demand when incomes rise. d. the movement along a supply curve when there is a change in demand. DIF: 1 LOC: Elasticity ANS: A NAT: Analytic MSC: Definitional3. REF: 5-1 TOP: Price elasticity of demand The price elasticity of demand for a good measures the willingness of a. consumers to buy less of the good as price rises.b. consumers to avoid monopolistic markets in favor of competitive markets.c. firms to produce more of a good as price rises.d. firms to cater to the tastes ofconsumers. DIF: 1 LOC: Elasticity ANS: A NAT: Analytic MSC: Interpretive4. REF: 5-1 TOP: Price elasticity of demand Which of the following statements about the price elasticity of demand is correct?a. The price elasticity of demand for a good measures the willingness of buyers of the good to buy less of the good as its price increases.b. Price elasticity of demand reflects the many economic, psychological, and social forces that shape consumer tastes.c. Other things equal, if good x has close substitutes and good y does not have close substitutes, then the demand for good x will be more elastic than the demand for good y.d. All of the above are correct. DIF: 2 LOC: Elasticity ANS: D NAT: Analytic MSC: Interpretive REF: 5-1 TOP: Price elasticity of demand308 ? Chapter 5 /Elasticity and Its Application Figure 5-2 PricePaPbD1D3D2Quantity59. Refer to Figure 5-2. As price falls from Pa to Pb, which demand curve represents the most elastic demand? a. D1 b. D2 c. D3 d. All of the above are equally elastic. ANS: A NAT: Analytic MSC: Applicative DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 60. Refer to Figure 5-2. As price falls from Pa to Pb, we could use the three demand curves to calculate three different values of the price elasticity of demand. Which of the three demand curves would produce the smallest elasticity? a. D1 b. D2 c. D3 d. All of the above are equally elastic. ANS: C NAT: Analytic MSC: Applicative DIF: 2 LOC:Elasticity REF: 5-1 TOP: Price elasticity of demand Table 5-1 Good Price Elasticity of Demand A B 61. Refer to Table 5-1. Which of the following is consistent with the elasticities given in Table 5-2? a. A is a luxury and B is a necessity. b. A is a good several years after a price increase, and B is that same good several days after the price increase. c. A is a Kit Kat bar and B is candy. d. A has fewer substitutes than B. ANS: D NAT: Analytic MSC: Analytical DIF: 3 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand Chapter 5 /Elasticity and Its Application ? 309 62. Refer to Table 5-1. Which of the following is consistent with the elasticities given in Table 5-2? a. A is grapes and B is fruit. b. A is T-shirts and B is socks.c. A is train tickets before cars were invented, and B is train tickets after carswere invented. d. A is diamond necklaces and B is beds. ANS: C NAT: Analytic MSC: Analytical DIF: 3 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 63. Studies indicate that the price elasticity of demand for cigarettes is about A government policy aimed at reducing smoking changed the price of a pack of cigarettes from $2 to $6. According to the midpoint method, the government policy should have reduced smoking by a. 30%. b. 40%. c. 80%. d. 250%. ANS: B NAT: Analytic MSC: Applicative DIF: 3 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 64. If a 15% increase in price for a good results in a 20% decrease in quantity demanded, the price elasticity of demand is a. b. c. d. ANS: C NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1TOP: Price elasticity of demand 65. If a 20% increase in price for a good results in a 15% decrease in quantity demanded, the price elasticity of demand is a. b. c. d. ANS: A NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 66. If a 10% decrease in price for a good results in a 20% increase in quantity demanded, the price elasticity of demand is a. b. 1. c. d. 2. ANS: D NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 67. If a 6% decrease in price for a good results in a 2% increase in quantity demanded, the price elasticity of demand is a. b.c. 3.d. 4. ANS: B NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 310 ?Chapter 5 /Elasticity and Its Application 68. Suppose that quantity demand rises by 10% as a result of a 15% decrease in price. The price elasticity of demand for this good is a. inelastic and equal to b. elastic and equal to c. inelastic and equal to d. elastic and equal to ANS: A NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 69. Suppose that quantity demand falls by 30% as a result of a 5% increase in price. The price elasticity of demand for this good is a. inelastic and equal to 6. b. elastic and equal to 6. c. inelastic and equal to d. elastic and equal to ANS: B NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand Table 5-2 The following table shows a portion of the demand schedule for aparticular good at various levels of income. Price $24 $20 $16 $12 $8 $4 Quantity Demanded (Income = $5,000) 2 4 6 8 10 12 Quantity Demanded (Income = $7,500) 3 6 9 12 15 18 Quantity Demanded (Income = $10,000) 4 8 12 16 20 24 70. Refer to Table 5-2. Using the midpoint method, when income equals $7,500, what is the price elasticity of demand between $16 and $20? a. b. c. d. ANS: D NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand 71. Refer to Table 5-2. Using the midpoint method, when income equals $5,000, what is the price elasticity of demand between $8 and $12? a. b. c. d. ANS: A NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Price elasticity of demand Chapter 5 /Elasticity and Its Application ?311 72. Refer to Table 5-2. Using the midpoint method, at a price of $16, what is the income elasticity of demand when income rises from $5,000 to $10,000?a. b. c. d. ANS: C NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Income elasticity of demand 73. Refer to Table 5-2. Using the midpoint method, at a price of $8, what is the income elasticity of demand when income rises from $7,500 to $10,000? a.b. c. d. ANS: C NAT: Analytic MSC: Analytical DIF: 2 LOC: Elasticity REF: 5-1 TOP: Income elasticity of demand 74. Refer to Table 5-2. Using the midpoint method, at a price of $12, what is the income elasticity of demand when income rises from $5,000 to $10,000? a.b. c. d. ANS: C NAT: Analytic MSC: Analytical DIF: 2。
曼昆《经济学原理(微观经济学分册)》(第5版)课后习题详解 第1篇 导 言【圣才出品】

第1篇导言第1章经济学十大原理一、概念题1.稀缺性(scarcity)答:经济学研究的问题和经济物品都是以稀缺性为前提的。
稀缺性指在给定的时间内,相对于人的需求而言,经济资源的供给总是不足的,也就是资源的有用性与有限性。
人类消费各种物品的欲望是无限的,满足这种欲望的物品,有的可以不付出任何代价而随意取得,称之为自由物品,如阳光和空气;但绝大多数物品是不能自由取用的,因为世界上的资源(包括物质资源和人力资源)是有限的,这种有限的、为获取它必须付出某种代价的物品,称为“经济物品”。
正因为稀缺性的客观存在,地球上就存在着资源的有限性和人类的欲望与需求的无限性之间的矛盾。
经济学的一个重要研究任务就是:“研究人们如何进行抉择,以便使用稀缺的或有限的生产性资源(土地、劳动、资本品如机器、技术知识)来生产各种商品,并把它们分配给不同的社会成员进行消费。
”也就是从经济学角度来研究使用有限的资源来生产什么、如何生产和为谁生产的问题。
2.经济学(economics)答:经济学是研究如何将稀缺的资源有效地配置给相互竞争的用途,以使人类的欲望得到最大限度满足的科学。
时下经常见诸国内报刊文献的“现代西方经济学”一词,大多也都在这个意义上使用。
自从凯恩斯的名著《就业、利息和货币通论》于1936年发表之后,西方经济学界对经济学的研究便分为两个部分:微观经济学与宏观经济学。
微观经济学是以单个经济主体(作为消费者的单个家庭或个人,作为生产者的单个厂商或企业,以及单个产品或生产要素市场)为研究对象,研究单个经济主体面对既定的资源约束时如何进行选择的科学。
宏观经济学则以整个国民经济为研究对象,主要着眼于对经济总量的研究。
3.效率(efficiency)答:效率指人们在实践活动中的产出与投入之比值,或者是效益与成本之比值,如果比值大,效率就高;反之,比值小,效率就低。
效率与产出或者收益的大小成正比,而与成本或投入成反比,也就是说,如果想提高效率,必须降低成本或投入,提高收益或产出。
曼昆微观经济学原理第五版课后习题答案

问题与应用1.描写下列每种情况所面临的权衡取舍:A.一个家庭决定是否买一辆新车。
答:如果买新车就要减少家庭其他方面的开支,如:外出旅行,购置新家具;如果不买新车就享受不到驾驶新车外出的方便和舒适。
B.国会议员决定对国家公园支出多少。
答:对国家公园的支出数额大,国家公园的条件可以得到改善,环境会得到更好的保护。
但同时,政府可用于交通、邮电等其他公共事业的支出就会减少。
C.一个公司总裁决定是否新开一家工厂。
答:开一家新厂可以扩大企业规模,生产更多的产品。
但可能用于企业研发的资金就少了。
这样,企业开发新产品、利用新技术的进度可能会减慢。
D.一个教授决定用多少时间备课。
0答:教授若将大部分时间用于自己研究,可能会出更多成果,但备课时间减少影响学生授课质量。
E.一个刚大学毕业的学生决定是否去读研究生。
答:毕业后参加工作,可即刻获取工资收入;但继续读研究生,能接受更多知识和未来更高收益。
2.你正想决定是否去度假。
度假的大部分成本((机票、旅馆、放弃的工资))都用美元来衡量,但度假的收益是心理的。
你将如何比较收益与成本呢??答:这种心理上的收益可以用是否达到既定目标来衡量。
对于这个行动前就会作出的既定目标,我们一定有一个为实现目标而愿意承担的成本范围。
在这个可以承受的成本范围内,度假如果满足了既定目标,如:放松身心、恢复体力等等,那么,就可以说这次度假的收益至少不小于它的成本。
3.你正计划用星期六去从事业余工作,但一个朋友请你去滑雪。
去滑雪的真实成本是什么?现在假设你已计划这天在图书馆学习,这种情况下去滑雪的成本是什么?请解释之。
答:去滑雪的真实成本是周六打工所能赚到的工资,我本可以利用这段时间去工作。
如果我本计划这天在图书馆学习,那么去滑雪的成本是在这段时间里我可以获得的知识。
曼昆微观经济学第五版答案

曼昆微观经济学第五版答案【篇一:曼昆_微观经济学_原理_第五版_课后习题答案(修改)】/p> 4.你在篮球比赛的赌注中赢了100美元。
你可以选择现在花掉它或在利率为55%的银行中存一年。
现在花掉100美元的机会成本是什么呢?答:现在花掉100 美元的机会成本是在一年后得到105 美元的银行支付(利息+本金)。
7.社会保障制度为65岁以上的人提供收入。
如果一个社会保障的领取者决定去工作并赚一些钱,他(或她)所领到的社会保障津贴通常会减少。
a.提供社会保障如何影响人们在工作时的储蓄激励?答:社会保障的提供使人们退休以后仍可以获得收入,以保证生活。
因此,人们不用为不能工作时的生活费而发愁,人们在工作时期的储蓄就会减少。
b.收入提高时津贴减少的政策如何影响65岁以上的人的工作激励??答:这会使65 岁以上的人在工作中不再积极进取。
因为努力工作获得高收入反而会使得到的津贴减少,所以对65 岁以上的人的努力工作的激励减少了。
11.解释下列每一项政府活动的动机是关注平等还是关注效率。
在关注效率的情况下,讨论所涉及的市场失灵的类型。
a.对有线电视频道的价格进行管制。
答:这是关注效率,市场失灵的原因是市场势力的存在。
可能某地只有一家有线电视台,由于没有竞争者,有线电视台会向有线频道的消费者收取高出市场均衡价格的价格,这是垄断。
垄断市场不能使稀缺资源得到最有效的配置。
在这种情况下,规定有线电视频道的价格会提高市场效率。
b.向一些穷人提供可用来购买食物的消费券。
答:这是出于关注平等的动机,政府这样做是想把经济蛋糕更公平地分给每一个人。
c.在公共场所禁止抽烟。
答:这是出于关注效率的动机。
因为公共场所中的吸烟行为会污染空气,影响周围不吸烟者的身体健康,对社会产生了有害的外部性,而外部性正是市场失灵的一种情况,而这也正是政府在公共场所禁止吸烟的原因。
d.把美孚石油公司(它曾拥90%的炼油厂)分拆为几个较小的公司。
答:出于关注效率的动机,市场失灵是由于市场势力。
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Chapter 1Ten Principles of EconomicsTRUE/FALSE1. Scarcity means that there is less of a good or resource available than people wish to have.ANS: T DIF: 1 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Definitional2. Economics is the study of how evenly goods and services are distributed within society.ANS: F DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economics MSC: Definitional3. Economics is the study of how society allocates its unlimited resources.ANS: F DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economics MSC: Definitional4. With careful planning, we can usually get something that we like without having to give up something elsethat we like.ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Interpretive5. Choosing not to attend a concert so that you can study for your exam is an example of a tradeoff.ANS: T DIF: 2 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Applicative6. Efficiency means everyone in the economy should receive an equal share of the goods and services produced. ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and Equity TOP: EqualityMSC: Definitional7. Equality refers to how the pie is divided, and efficiency refers to the size of the economic pie.ANS: T DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and Equity TOP: Equality | EfficiencyMSC: Definitional8. Government policies that improve equality usually increase efficiency at the same time.ANS: F DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and Equity TOP: Efficiency | EqualityMSC: Interpretive9. An individual deciding how to allocate her limited time is dealing with both scarcity and trade-offs.ANS: T DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Opportunity cost MSC: Interpretative10. The cost of an action is measured in terms of foregone opportunities.ANS: T DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Opportunity cost MSC: Interpretive11. Tuition is the single-largest cost of attending college for most students.ANS: F DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Opportunity cost MSC: Interpretive112. If wages for accountants rose, then accountants’ leisure time would have a lower opportunity cost.ANS: F DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Opportunity cost MSC: Applicative13. A marginal change is a small incremental adjustment to an existing plan of action.ANS: T DIF: 1 REF: 1-1NAT: Analytic LOC: Marginal costs & benefits TOP: Marginal changesMSC: Definitional14. An increase in the marginal cost of an activity necessarily means that people will no longer engage in any ofthat activity.ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Marginal costs & benefits TOP: Marginal changesMSC: Applicative15. If the average cost of transporting a passenger on the train from Chicago to St. Louis is $75, it would beirrational for the railroad to allow any passenger to ride for less than $75.ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Marginal costs & benefits TOP: Marginal changesMSC: Applicative16. The fact that people are willing to pay much more for a diamond, which is not needed for survival, than theyare willing to pay for a cup of water, which is needed for survival, is an example of irrational behavior. ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Marginal costs & benefits TOP: Marginal changesMSC: Interpretive17. A rational decisionmaker takes an action if and only if the marginal cost exceeds the marginal benefit. ANS: F DIF: 2 REF: 1-1NAT: Analytic LOC: Marginal costs & benefits TOP: Marginal changesMSC: Interpretive18. Suppose one county in Missouri decides it wants to reduce alcohol consumption, so the county passes a lawthat raises the price of a bottle of beer by $1. As a result, people drive to other counties to drink alcohol, which results in an increase in drunk driving. This illustrates the principle that people respond to incentives. ANS: T DIF: 2 REF: 1-1NAT: Analytic LOC: The role of incentives TOP: IncentivesMSC: Applicative19. A tax on gasoline is an incentive that encourages people to drive smaller more fuel-efficient cars.ANS: T DIF: 1 REF: 1-1NAT: Analytic LOC: The role of incentives TOP: IncentivesMSC: Applicative20. Trade allows each person to specialize in the activities he or she does best, thus increasing each individual'sproductivity.ANS: T DIF: 2 REF: 1-2NAT: Analytic LOC: Gains from trade, specialization and tradeTOP: Trade | Productivity MSC: Interpretive21. Trade with any nation can be mutually beneficial.ANS: T DIF: 2 REF: 1-2NAT: Analytic LOC: Gains from trade, specialization and tradeTOP: Trade MSC: Interpretive22. Trade can make everyone better off except in the case where one person is better at doing everything. ANS: F DIF: 1 REF: 1-2NAT: Analytic LOC: Gains from trade, specialization and tradeTOP: Trade MSC: Interpretiveword文档可自由复制编辑Chapter 1/Ten Principles of Economics 3 23. The invisible hand ensures that economic prosperity is distributed equally.ANS: F DIF: 2 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalitiesTOP: The invisible hand MSC: Definitional24. A market economy cannot produce a socially desirable outcome because individuals are motivated by theirown selfish interests.ANS: F DIF: 2 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalitiesTOP: Market economy MSC: Interpretive25. The government can potentially improve market outcomes if market inequalities or market failure exists. ANS: T DIF: 2 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalities | The role of governmentTOP: Government | Market economy MSC: Interpretive26. One way that governments can improve market outcomes is to ensure that individuals are able to own andexercise control over their scarce resources.ANS: T DIF: 2 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalities | The role of governmentTOP: Property rights MSC: Interpretive27. Market failure refers to a situation in which the market does not allocate resources efficiently.ANS: T DIF: 1 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalitiesTOP: Market failure MSC: Definitional28. Market power and externalities are two possible causes of market failure.ANS: T DIF: 1 REF: 1-2NAT: Analytic LOC: Markets, market failure, and externalitiesTOP: Market failure MSC: Definitional29. Productivity is defined as the quantity of goods and services produced from each unit of labor input.ANS: T DIF: 1 REF: 1-3NAT: Analytic LOC: Productivity and growth T OP: ProductivityMSC: Definitional30. Inflation is the primary determinant of a country's living standards.ANS: F DIF: 2 REF: 1-3NAT: Analytic LOC: Productivity and growthTOP: Productivity | Standard of living MSC: Interpretive31. Inflation increases the value of money.ANS: F DIF: 2 REF: 1-3NAT: Analytic LOC: Unemployment and Inflation TOP: InflationMSC: Interpretive32. Inflation measures the increase in the quantity of goods and services produced from each hour of a worker’stime.ANS: F DIF: 1 REF: 1-3NAT: Analytic LOC: Unemployment and Inflation TOP: Inflation | ProductivityMSC: Definitional33. In the long run the primary effect of increasing the quantity of money is higher prices.ANS: T DIF: 2 REF: 1-3NAT: Analytic LOC: Unemployment and Inflation TOP: InflationMSC: Interpretative34. The business cycle refers to fluctuations in economic activity such as employment and production.ANS: T DIF: 1 REF: 1-3NAT: Analytic LOC: Unemployment and Inflation TOP: The business cycleMSC: DefinitionalSHORT ANSWER1. How does the study of economics depend upon the phenomenon of scarcity?ANS:Because economics is the study of how society allocates its scarce resources, if there were no scarcity, there would be no need for economics. Everyone could have all the goods and services they wanted. No one would have to make decisions based on tradeoffs, because there would be no opportunity cost associated with the decision. (It is difficult to conceive of a situation where time is not scarce, however).DIF: 2 REF: 1-1 NAT: AnalyticLOC: Scarcity, tradeoffs, and opportunity cost TOP: Economics | ScarcityMSC: Applicative2. One tradeoff society faces is between efficiency and equality. Define each term. If the U.S. governmentredistributes income from the rich to the poor, explain how this action affects equality as well as efficiency inthe economy.ANS:Efficiency is the property of society getting the most it can from its scarce resources. Equality is defined as theproperty of distributing economic prosperity fairly among the members of society. Often, these two goals conflict.When the government redistributes income from the rich to the poor, it reduces the reward for working hard. Fewer goods and services are produced and the economic pie gets smaller. When the government tries to cut the economic pie into more equal slices, the pie gets smaller. Policies aimed at achieving a more equal distribution of economic well-being, such as the welfare system, try to help those members of society who are most in need. The individual income tax asks the financially successful to contribute more than others to support the government.DIF: 2 REF: 1-1 NAT: AnalyticLOC: Scarcity, tradeoffs, and opportunity cost | Efficiency and EquityTOP: Tradeoffs | Efficiency | Equality MSC: Interpretive3. Define opportunity cost. What is the opportunity cost to you of attending college? What was your opportunitycost of coming to class today?ANS:Whatever must be given up to obtain some item it its opportunity cost. Basically, this would be a person's second choice. The opportunity cost of a person attending college is the value of the best alternative use of that person'stime, as well as the additional costs the person incurs by making the choice to attend college. For most students this would be the income the student gives up by not working plus the cost of tuition and books, and any other costs they incur by attending college that they would not incur if they chose not to attend college. A student's opportunity cost of coming to class was the value of the best opportunity the student gave up. (For most students, that seems to be sleep.)DIF: 2 REF: 1-1 NAT: AnalyticLOC: Scarcity, tradeoffs, and opportunity cost TOP: Opportunity costMSC: Interpretive4. With the understanding that people respond to incentives, outline the possible outcome for teachers if the K-12school year is extended to 11 months per year instead of the existing 9 months per year.ANS:The concept of working longer per year would be perceived by many teachers as a definite increase in the cost of teaching. Even with additional compensation, many teachers look at summers off as a major benefit of the education profession. If this benefit were eliminated or diminished, some teachers may perceive that the marginal cost ofteaching would now be greater than the marginal benefit and would choose to leave teaching.DIF: 3 REF: 1-1 NAT: AnalyticLOC: The role of incentives TOP: Incentives MSC: Analyticalword文档可自由复制编辑Chapter 1/Ten Principles of Economics 5 5. Under what conditions might government intervention in a market economy improve the economy’sperformance?ANS:If there is a market failure, such as an externality or monopoly, government regulation might improve the well-being of society by promoting efficiency. If the distribution of income or wealth is considered to be unfair by society, government intervention might achieve a more equal distribution of economic well-being.DIF: 2 REF: 1-2 NAT: AnalyticLOC: Markets, market failure, and externalities | The role of governmentTOP: Market economy | Government MSC: Applicative6. Explain how an attempt by the government to lower inflation could cause unemployment to increase in theshort-run.ANS:To lower inflation, the government may choose to reduce the money supply in the economy. When the money supply is reduced, prices don't adjust immediately. Lower spending, combined with prices that are too high, reduces sales and causes workers to be laid off. Hence, the lower price level is associated with higher unemployment.DIF: 2 REF: 1-3 NAT: AnalyticLOC: Unemployment and Inflation | Efficiency and EquityTOP: Inflation | Unemployment | Tradeoffs MSC: ApplicativeMultiple Choice-Sec00MULTIPLE CHOICE1. The word that comes from the Greek word for "one who manages a household" isa.market.b.consumer.c.producer.d.economy.ANS: D DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economy MSC: Definitional2. The word “economy” comes from the Greek word oikonomos, which meansa.“environment.”b.“production.”c.“one who manages a household.”d.“one who makes decisions.”ANS: C DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economy MSC: Definitional3. Resources area.scarce for households but plentiful for economies.b.plentiful for households but scarce for economies.c.scarce for households and scarce for economies.d.plentiful for households and plentiful for economies.ANS: C DIF: 1 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Resources | Scarcity MSC: Interpretive4. In considering how to allocate its scarce resources among its various members, a household considersa.each member’s abilities.b.each member’s efforts.c.each member’s desires.d.all of the aboveANS: D DIF: 1 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretive5. Economics deals primarily with the concept ofa.scarcity.b.money.c.poverty.d.banking.ANS: A DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Scarcity MSC: Definitional6. Which of the following is correct?a.The word economy comes from the Greek word for “rational thinker.”b.Economists study the management of scarce resources.c.Because economists believe that people pursue their best interests, they are not interested in howpeople interact.d.All of the above are correct.ANS: B DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economics MSC: Definitional7. The overriding reason as to why households and societies face many decisions is thata.resources are scarce.b.goods and services are not scarce.c.incomes fluctuate with business cycles.d.people, by nature, tend to disagree.ANS: A DIF: 2 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretive8. The phenomenon of scarcity stems from the fact thata.most economies’ production methods are not very good.b.in most economies, wealthy people consume disproportionate quantities of goods and services.ernments restrict production of too many goods and services.d.resources are limited.ANS: D DIF: 2 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretive9. Approximately what percentage of the world's economies experience scarcity?a.25%b.50%c.75%d.100%ANS: D DIF: 1 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretive10. When a society cannot produce all the goods and services people wish to have, it is said that the economy isexperiencinga.scarcity.b.surpluses.c.inefficiencies.d.inequalities.ANS: A DIF: 2 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretiveword文档可自由复制编辑Chapter 1/Ten Principles of Economics 711. Which of the following products would be considered scarce?a.golf clubsb.Picasso paintingsc.applesd.All of the above are correct.ANS: D DIF: 2 REF: 1-0NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Scarcity MSC: Interpretive12. Economics is the study ofa.production methods.b.how society manages its scarce resources.c.how households decide who performs which tasks.d.the interaction of business and government.ANS: B DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Economies | Scarcity MSC: Definitional13. In most societies, resources are allocated bya. a single central planner.b. a small number of central planners.c.those firms that use resources to provide goods and services.d.the combined actions of millions of households and firms.ANS: D DIF: 1 REF: 1-0NAT: Analytic LOC: The Study of economics, and definitions in economicsTOP: Resource allocation MSC: InterpretiveMultiple Choice-Sec01-How People Make DecisionsMULTIPLE CHOICE1. The adage, "There is no such thing as a free lunch," meansa.even people on welfare have to pay for food.b.the cost of living is always increasing.c.people face tradeoffs.d.all costs are included in the price of a product.ANS: C DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Definitional2. The adage, "There is no such thing as a free lunch," is used to illustrate the principle thata.goods are scarce.b.people face tradeoffs.c.income must be earned.d.households face many decisions.ANS: B DIF: 2 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Interpretive3. Which of the following statements best represents the principle represented by the adage, "There is no suchthing as a free lunch"?a.Melissa can attend the concert only if she takes her sister with her.b.Greg is hungry and homeless.c.Brian must repair the tire on his bike before he can ride it to class.d.Kendra must decide between going to Colorado or Cancun for spring break.ANS: D DIF: 3 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Applicative4. The principle that "people face tradeoffs" applies toa.individuals.b.families.c.societies.d.All of the above are correct.ANS: D DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Applicative5. Sophia is planning her activities for a hot summer day. She would like to go to the local swimming pool andsee the latest blockbuster movie, but because she can only get tickets to the movie for the same time that the pool is open she can only choose one activity. This illustrates the basic principle thata.people respond to incentives.b.rational people think at the margin.c.people face tradeoffs.d.improvements in efficiency sometimes come at the expense of equality.ANS: C DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Interpretive6. Mitch has $100 to spend and wants to buy either a new amplifier for his guitar or a new mp3 player to listen tomusic while working out. Both the amplifier and the mp3 player cost $100, so he can only buy one. This illustrates the basic concept thata.trade can make everyone better off.b.people face trade-offsc.rational people think at the margin.d.people respond to incentives.ANS: B DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Interpretive7. Guns and butter are used to represent the classic societal tradeoff between spending ona.durable and nondurable goods.b.imports and exports.c.national defense and consumer goods.w enforcement and agriculture.ANS: C DIF: 1 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Interpretive8. A tradeoff exists between a clean environment and a higher level of income in thata.studies show that individuals with higher levels of income pollute less than low-income individuals.b.efforts to reduce pollution typically are not completely successful.ws that reduce pollution raise costs of production and reduce incomes.d.employing individuals to clean up pollution causes increases in employment and income.ANS: C DIF: 2 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Applicative9. When society requires that firms reduce pollution, there isa. a tradeoff because of reduced incomes to the firms' owners and workers.b. a tradeoff only if some firms are forced to close.c.no tradeoff, since the cost of reducing pollution falls only on the firms affected by the requirements.d.no tradeoff, since everyone benefits from reduced pollution.ANS: A DIF: 3 REF: 1-1NAT: Analytic LOC: Scarcity, tradeoffs, and opportunity costTOP: Tradeoffs MSC: Applicativeword文档可自由复制编辑Chapter 1/Ten Principles of Economics 910. Economists use the word equality to describe a situation in whicha.each member of society has the same income.b.each member of society has access to abundant quantities of goods and services, regardless of his orher income.c.society is getting the maximum benefits from its scarce resources.d.society's resources are used efficiently.ANS: A DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: EqualityMSC: Interpretive11. Efficiency means thata.society is conserving resources in order to save them for the future.b.society's goods and services are distributed equally among society's members.c.society's goods and services are distributed fairly, though not necessarily equally, among society'smembers.d.society is getting the maximum benefits from its scarce resources.ANS: D DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: EfficiencyMSC: Definitional12. The terms equality and efficiency are similar in that they both refer to benefits to society. However they aredifferent in thata.equality refers to uniform distribution of those benefits and efficiency refers to maximizing benefitsfrom scarce resources.b.equality refers to maximizing benefits from scarce resources and efficiency refers to uniformdistribution of those benefits.c.equality refers to everyone facing identical tradeoffs and efficiency refers to the opportunity cost ofthe benefits.d.equality refers to the opportunity cost of the benefits and efficiency refers to everyone facingidentical tradeoffs.ANS: A DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Definitional13. Which of the following phrases best captures the notion of efficiency?a.absolute fairnessb.equal distributionc.minimum wasted.equitable outcomeANS: C DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: EfficiencyMSC: Interpretive14. Which of the following words and phrases best captures the notion of equality?a.minimum wasteb.maximum benefitc.samenessd.efficiencyANS: C DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: EqualityMSC: Definitional15. A typical society strives to get the most it can from its scarce resources. At the same time, the society attemptsto distribute the benefits of those resources to the members of the society in a fair manner. In other words, the society faces a tradeoff betweena.guns and butter.b.efficiency and equality.c.inflation and unemployment.d.work and leisure.ANS: B DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive16. Which of the following is true?a.Efficiency refers to the size of the economic pie; equality refers to how the pie is divided.ernment policies usually improve upon both equality and efficiency.c.As long as the economic pie continually gets larger, no one will have to go hungry.d.Efficiency and equality can both be achieved if the economic pie is cut into equal pieces.ANS: A DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive17. As a result of a successful attempt by government to cut the economic pie into more equal slices,a.it is easier to cut the pie, and therefore the economy can produce a larger pie.b.those who earn more income pay less in taxes.c.the pie gets smaller, and there will be less pie overall.ernment will spend too much time cutting and it causes the economy to lose the ability toproduce enough pie for everyone.ANS: C DIF: 3 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Analytical18. When the government redistributes income from the wealthy to the poor,a.efficiency is improved, but equality is not.b.both wealthy people and poor people benefit directly.c.people work less and produce fewer goods and services.d.the government collects less revenue in total.ANS: C DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive19. When the government attempts to improve equality in an economy the result is oftena.an increase in overall output in the economy.b.additional government revenue since overall income will increase.c. a reduction in equality.d. a reduction in efficiency.ANS: D DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive20. When the government implements programs such as progressive income tax rates, which of the following islikely to occur?a.equality is increased and efficiency is increased.b.equality is increased and efficiency is decreased.c.equality is decreased and efficiency is increased.d.equality is decreased and efficiency is decreased.ANS: B DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretiveword文档可自由复制编辑21. A likely effect of government policies that redistribute income and wealth from the wealthy to the poor is thatthose policiesa.enhance equality.b.reduce efficiency.c.reduce the reward for working hard.d.All of the above are correct.ANS: D DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive22. When government policies are enacted,a.equality can usually be enhanced without an efficiency loss, but efficiency can never be enhancedwithout a reduction in equality.b.efficiency can usually be enhanced without a reduction in equality, but equality can never beenhanced without an efficiency loss.c.it is always the case that either efficiency and equality are both enhanced, or efficiency and equalityare both diminished.d.None of the above are correct.ANS: D DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Applicative23. Senator Smith wants to increase taxes on people with high incomes and use the money to help the poor.Senator Jones argues that such a tax will discourage successful people from working and will therefore make society worse off. An economist would say thata.we should agree with Senator Smith.b.we should agree with Senator Jones.c. a good decision requires that we recognize both viewpoints.d.there are no tradeoffs between equity and efficiency.ANS: C DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Applicative24. Senator Smith argues that replacing the income tax with a national sales tax would increase the level of output.Senator Wells objects that this policy would benefit the rich at the expense of the poor.a.Both Senators’ arguments are primarily about equality.b.Both Senators’ arguments are primarily abo ut efficiency.c.Senator Smith’s argument is primarily about equality, while Senator Well’s argument is primarilyabout efficiency.d.Senator Smith’s argument is primarily about efficiency, while Senator Well’s argument is primarilyabout equality.ANS: D DIF: 1 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Equality | EfficiencyMSC: Interpretative25. Suppose the government taxes the wealthy at a higher rate than it taxes the poor and then develops programsto redistribute the tax revenue from the wealthy to the poor. This redistribution of wealtha.is more efficient and more equal for society.b.is more efficient but less equal for society.c.is more equal but less efficient for society.d.is less equal and less efficient for society.ANS: C DIF: 2 REF: 1-1NAT: Analytic LOC: Efficiency and equity TOP: Efficiency | EqualityMSC: Interpretive。