中国石油大学 微观经济学 第一次在线作业
微观经济学作业1~4 完整答案
微观经济学作业一（导论与市场运行）一、选择题（将正确答案的标号填在题后的括号里）1.在任何一个经济中：( C )A、因为资源是稀缺的所以不会存在资源的浪费B、因为存在资源浪费，所以资源并不稀缺C、既存在资源稀缺，又存在资源浪费2.资源的稀缺性是指：( B )A、世界上的资源最终会由于人们生产更多的物品而消耗光B、相对于人们无穷的欲望而言，资源总是不足的C、生产某种物品所需资源的绝对数量很少3. 微观经济学解决的问题是：( A )A、资源配置B、资源利用C、单个经济单位如何实现最大化【微观经济学以单个经济单位为研究对象，通过研究单个经济单位的经济行为来说明市场经济如何通过价格机制来解决社会资源配置问题。
微观经济学对于居民的研究，是以居民如何将有限收入用于各种物品的消费上实现效用最大化而展开的。
微观经济学对厂商的研究是从厂商如何将有限资源用于生产实现利润最大化而展开的。
微观经济学通过对居民的效用最大化和厂商的利润最大化的研究，来探索整个社会的资源最优配置。
每个经济单位都实现了最大化，整个社会的资源配置也就达到最优化了。
】4. 宏观经济学的基本假设是：( B )A、市场出清B、市场失灵C、完全理性5. 实证经济学与规范经济学的根本区别是：( A )A、研究方法的不同B、研究对象的不同C、研究范围的不同【实证经济学和规范经济学是现代经济学的两个重要分支，是学术界对因研究方法的不同而对经济学的一种划分。
】6. 当汽油的价格上升时，小汽车的需求将：( A )A、需求曲线向左移动B、保持不变C、需求曲线向右移动【互补品】7. 当咖啡的价格急剧上升时，对茶叶的需求将：( C )A、减少B、保持不变C、增加【替代品】8.消费者预期某物品将来价格要上升，则对该物品当前需求会：( C )A、减少B、不变C、增加9.需求的变动与需求量的变动:( C )A、是一回事B、都是由于同一种原因引起的C、需求的变动由除价格以外的其它因素的变动引起的，而需求量的变动由价格的变动引起10.对化妆品需求的减少是指( A )A、收入减少而引起的减少B、价格上升而引起的减少C、与需求量的减少相同11.需求曲线通常是一条:( A )A、向右下方倾斜的曲线B、向左下方倾斜的曲线C、垂线12.在同一条需求曲线上，价格与需求量的组合从A点移动到B点是:( C )A、需求的变动B、收入的变动C、需求量的变动13. 鸡蛋的供给量增加是指:( B )A、由于鸡蛋的需求量增加而引起的增加B、由于鸡蛋的价格上升而引起的增加C、由于收入的增加而引起的增加14. 均衡价格是:( A )A、供给与需求相等时的价格B、固定不变的加格C、任何一种市场价格15. 均衡价格随着( C )。
微观经济学第一次作业答案
均衡一定发生在边角解，而边角均衡解不一定满足 MRS xy Px P 的均ຫໍສະໝຸດ 条件。 MRS xy x Py Py
是消费者均衡的充分条件而非必要条件，只有当消费者同时消费两种商品时，才为充要条 件。
（4）如果无差异曲线凹向原点，最优消费组合必定是个角点解，除非存在 数量折扣。
错误。 前半句正确，如果无差异曲线凹向原点，最优消费组合必定是个角点解，如下图（1） 所示。 后半句错误，当存在数量折扣时，最优消费组合可能仍然是折扣前的解，也有可能会 是另外一个解，但无论是哪种情况，都必定仍然是个角点解。如下图（2）和图（3）所示：
正确。 非饱和性意味着增加一个新的商品消费总是能带来正的效用，也即边际效用大于零。
（2）若某个消费者的偏好可由效用函数 U
10( X 2 2 XY Y 2 ) 20 来描述，
那么对此消费者而言，商品 X 和商品 Y 是完全替代的。 （ ）
正确。
（X +Y） 20 ，经单调变换为：U =X +Y 。因此，X 和 Y 是完全 该效用函数即为 U =10
U ( X , Y , Z ) XY(1 Z。 )
于是有：
) Max : U ( X , Y , Z
X ,Y , Z
XY (1
Z)
s.t. 0.25 X Y 2Z 2
可得拉格朗日函数为： L( X , Y , ) XY (1 Z ) (2 0.25 X Y 2Z ) 一阶条件为：
Max : u(b, x) x 5b2 b, x
s.t.20000 100b x I
构造拉格朗日函数为：
L(b, x, ) x 5b2 ( I 20000 100b x) .
石油大学 《微观经济学》在线考试答案
中国石油大学（北京）远程教育学院期末考试《微观经济学》学习中心：_______ 姓名：学号：关于课程考试违规作弊的说明1、提交文件中涉嫌抄袭内容（包括抄袭网上、书籍、报刊杂志及其他已有论文），带有明显外校标记，不符合学院要求或学生本人情况，或存在查明出处的内容或其他可疑字样者，判为抄袭，成绩为“0”。
2、两人或两人以上答题内容或用语有50%以上相同者判为雷同，成绩为“0”。
3、所提交试卷或材料没有对老师题目进行作答或提交内容与该课程要求完全不相干者，认定为“白卷”或“错卷”，成绩为“0”。
一、题型1、名词解释（5道题，每题4分，共20分）2、简答题（5道题，每题12分，共60分）3、论述题（1道题，每题20分，共20分）二、题目1、名词解释（5道题，每题4分，共20分）（1）需求价格弹性需求价格弹性(Price elasticity of demand)，简称为价格弹性或需求弹性，需求价格弹性:是指需求量对价格变动的反应程度，是需求量变化的百分比除以价格变化的百分比。
需求量变化率对商品自身价格变化率反应程度的一种度量，等于需求变化率除以价格变化率。
（3）寡头市场,在西方也称寡头垄断，是指一种商品的生产和销售有少数几家大厂商所控制的市场结构。
寡头市场具有以下特征: 厂商数量少，厂商相互依存，价格稳定，厂商进出不易。
在现实经济中，寡头垄断常见于重工业部门，如汽车，钢铁，造船，石油化工，有色冶金，飞机制造，航空运输等部门。
（5）边际收益递减又称边际效益递减规律，或边际产量递减规律，指在短期生产过程中，在其他条件不变(如技术水平不变)的前提下，增加某种生产要素的投入，当该生产要素投入数量增加到一定程度以后，增加一单位该要素所带来的效益增加量是递减的，边际收益递减规律是以技术水平和其他生产要素的投入数量保持不变为条件进行讨论的一种规律。
（7）公共物品公共物品是指公共使用或消费的物品。
公共物品是与私人物品相对应的一个概念，消费具有非竞争性和非排他性特征，一般不能或不能有效通过市场机制由企业和个人来提供，主要由政府来提供。
微观经济学在线考试
中国石油大学（北京）远程教育学院期末考试《微观经济学》学习中心：姓名：蒙学亮学号：086516_关于课程考试违规作弊的说明1、提交文件中涉嫌抄袭内容（包括抄袭网上、书籍、报刊杂志及其他已有论文），带有明显外校标记，不符合学院要求或学生本人情况，或存在查明出处的内容或其他可疑字样者，判为抄袭，成绩为“0”。
2、两人或两人以上答题内容或用语有50%以上相同者判为雷同，成绩为“0”。
3、所提交试卷或材料没有对老师题目进行作答或提交内容与该课程要求完全不相干者，认定为“白卷”或“错卷”，成绩为“0”。
一、题型1、名词解释（5道题，每题4分，共20分）2、简答题（5道题，每题12分，共60分）3、论述题（1道题，每题20分，共20分）二、题目1、名词解释（5道题，每题4分，共20分））消费者剩余：消费者剩余（）又称为消费者的净收益，是（2指买者的支付意愿减去买者的实际支付量。
消费者剩余衡量了买者自己感觉到所获得的额外利益。
简单地说，就是买者卖者都希望从市场活动中获得收益。
．）无差异曲线：无差异曲线是经济学中的一个概念，它是4（指这样一条曲线，在它上面的每一点，商品的组合是不同的，但无差异曲线是.是，它表示人们从中得到的效用程度却是相同的用来表示两种商品或两组商品的不同数量的组合对消费者所提如果听任消无差异曲线符合这样一个要求：供的效用是相同的，费者对曲线上的点作选择，那么，所有的点对他都是同样可取的因为任一点所代表的组合给他所带来的满足都是无差异的需求交叉弹性需求交叉弹性是需求交叉价格弹）的简称，它表示一种商品的需求量变动对另一种商品价格变动的反应程度。
若以X、Y代表两种商品，表示需求交叉弹性系数，表示Y商品的价格，Δ表示Y商品价格的变动量，表示X商品原来的需求量，Δ表示因Y商品价格的变动所引起的X商品需求量的变动量，则需求交叉弹性系数的一般表达式为：（△）/（△）商品需求量变化的百分比商品价格变化的百分比。
微观经济学第一次在线作业(Microeconomics for the first time online homework)
微观经济学第一次在线作业（Microeconomics for the first timeonline homework）Which of the following first questions is not true about microeconomics and macroeconomics?Your answer: ASubject score: 0.5Score: 0.5Annotation: A is wrong, macroeconomics regards economic whole as the object of study, do not take large-scale industry as the research objectWhich of the following second questions is most likely to be studied by micro economists?Your answer: CSubject score: 0.5Score: 0.5Annotation: the employment problem in an industry is micro, and the other three are macroeconomic issues.The third point on the frontier of production possibilities is...Your answer: ASubject score: 0.5Score: 0.5Note: the point on the boundary of the production possibility is efficient, and the point in it indicates inefficiency.Fourth, if a linear demand curve is tangent to a curve type demand curve, then the demand price elasticity of the two curve at the point of tangency (...)Your answer: ASubject score: 0.5Score: 0.5Note: the price elasticity of demand for a given point depends on its coordinates and slope, whether in straight line or curve, the two factors are the same.Fifth, if the demand curve is a straight line downward to the right, the seller's total income when the price drops from high to lowYour answer: BSubject score: 0.5Note: because the price elasticity of demand on the demand curve is different, the top left point is elastic, so reduce the price when the total income increased, right below the point of lack of flexibility, so reduce the price to reduce total revenue.Sixth, if the price of one of the two goods changes when the price of one of these two goods increases or decreases at the same time, the price elasticity coefficient of the cross demand isYour answer: ASubject score: 0.5Score: 0.5Annotation: if the price of a commodity changes and the demand for two kinds of goods changes at the same time, the two goods are complementary goods, and the cross elasticity of the complementary goods is negative.Seventh, the market supply curve of a commodity is a straight line passing through the origin, and the price elasticity of its supplyYour answer: BSubject score: 0.5Annotation: supply price elasticity =P/Q[1/ (dP/dQ)]=1Eighth, in order to increase revenue, the government decided to levy taxes on the sellers according to the amount of sales. If the government wanted the tax burden to bear on the buyer and did not affect the volume of the transaction as much as possible, then the condition should be thatYour answer: CSubject score: 0.5Score: 0.5Note: the tax burden falls on the less elastic side, ifNinth, the failure of wheat leads to an increase in wheat prices, to be exact, in the processYour answer: ASubject score: 0.5Score: 0.5Note: wheat harvest, wheat supply reduction, the equilibrium quantity corresponding to the new intersection of the supply curve and the demand curve is reduced, it embodies the parallel move, reducing the supply of supply, equilibrium movement alongthe demand curve, demand reduction.The tenth item falls at the same time that both the demand level and the supply level decreaseYour answer: DSubject score: 0.5Score: 0.5Note: as you can see from the graph, the balanced output must be reduced and the price becomes uncertain.The shape of the eleventh - item indifference curve depends onYour answer: ASubject score: 0.5Score: 0.5Note: indifference curves represent consumer preferencesTwelfth, if an indifference curve is horizontal, this indicates that the consumer has reached saturation (X) measured by the cross axis and Y by a vertical axisYour answer: ASubject score: 0.5Score: 0.5Annotation: a horizontal indifference curve indicating that, regardless of the quantity of X products, the utility is the same to consumers. So, X goods are saturated for consumers.The thirteenth - item indifference curve assumes that the marginal rate of substitution of the goods X and Y equals theirYour answer: CSubject score: 0.5Score: 0.5Annotation: this formula can be obtained by definition.Fourteenth, as income and prices change, consumer equilibrium has changed. In the new equilibrium, the marginal utility of various goods is lower than the marginal utility of the original equilibriumYour answer: ASubject score: 0.5Score: 0.5Annotation: according to the law of diminishing marginal utility, the more the two goods consume, the lower the marginalutility, the greater the total utility of the consumer.The fifteenth question assumes that the price of X and Y has been fixed. When MRSXY> PX/PY, the consumer will meet the greatest satisfaction, he willYour answer: ASubject score: 0.5Score: 0.5Annotation: according to the formula, if increasing the consumption of X goods, the increase in marginal utility will be greater than the decrease in marginal utility resulting from the reduction of Y commodity consumption.Sixteenth, the rise in prices of normal items has led to a decrease in demandYour answer: CSubject score: 0.5Score: 0.5Comment: at this time, whether it is the substitution effect or the income effect, the consumption of this kind of goods is reduced by the consumers.The seventeenth question, when APL is positive, but increments,MPL isYour answer: DSubject score: 0.5Score: 0.5Annotation: according to figure, the relation between marginal production and average output, when the marginal production is greater than the average output, the average output increases progressively.In the eighteenth question, the following statement is wrongYour answer: BSubject score: 0.5Score: 0.5Annotation: according to the relation between marginal production and total output, the marginal production decreases, but the total output still increases as long as he is greater than zero.In the nineteenth question, what follows is correctYour answer: DSubject score: 0.5Score: 0.5Note: only the last answer is correct, diminishing marginal returns leads to diminishing marginal rate of substitution between the two elements.The twentieth question, when a manufacturer produces the minimum amount of production at a minimum cost, heYour answer: DSubject score: 0.5Score: 0.5Annotation: for example, a monopolistic manufacturer whose profit maximization point of production is less than the average cost of production at this time.Twenty-first, the short and long term division of economics depends onYour answer: DSubject score: 0.5Score: 0.5Annotation: in economics, in the short run, only the quantity of labor can be adjusted, and in the long run the quantity oflabor and capital can be adjusted.Which of the following statements is true of the twenty-second question?Your answer: BSubject score: 0.5Score: 0.5Note: continuous increase in production may occur at the beginning of decreasing costs, the opportunity cost of the University also includes the income of the work to be abandoned.Twenty-third, the long-term total cost curve is the product of all kindsYour answer: ASubject score: 0.5Score: 0.5Annotation: the trajectory of the lowest cost pointTwenty-fourth, when the law of diminishing returns takes effect, the TVC curveYour answer: DSubject score: 0.5Score: 0.5Annotation:The twenty-fifth problem is the line from the origin and the point of the TC curve, ACYour answer: BSubject score: 0.5Score: 0.5Annotation:In the twenty-sixth question, when the yield is 99 units, the total cost is equal to 995 yuan. When the output increases to A00 units, the average cost is equal to A0 yuan, so that the marginal cost isYour answer: BSubject score: 0.5Score: 0.5Annotation: the total income equals the sum of the marginal revenue, and the total income of 99 units is 1000 of the total income of 995100 units, so the marginal income of the 100thgoods is equal to 5.In the twenty-seventh question, what follows is correctYour answer: BSubject score: 0.5Score: 0.5Annotation: marginal cost increase and marginal revenue decrease are the same reason.Twenty-eighth, the private market is difficult to provide public goodsYour answer: DSubject score: 0.5Score: 0.5Note: a free rider is a public good that does not pay for him, so there is no private offerWhich of the following twenty-ninth questions is the potential solution to the problem of air pollution?Your answer: BSubject score: 0.5Score: 0.5Annotation: as long as the definition of property rights is clear, the externality can be solved through the marketThirtieth, a crowded toll road isYour answer: ASubject score: 0.5Score: 0.5Note: This is both competitive and exclusive, so it's personal.Thirty-first, when the market fails to allocate resources effectively, the ultimate source of the problem is usuallyYour answer: CSubject score: 0.5Score: 0.5Annotation: as long as the definition of property rights is clear, the externality can be solved through the marketThirty-second question, if the output of a competition enterprise doubled, its total incomeYour answer: BSubject score: 0.5Score: 0.5Note: total income = price * output, total competitive market price unchanged, so total revenue doubled.Thirty-third, in the long run, the supply curve of the competing firms is...Your answer: BSubject score: 0.5Score: 0.5Annotation: a fully competitive industry, in the long run, the price should be equal to the marginal cost,The price is higher than the average cost, so the supply curve should be a part of the marginal cost curve above the average cost curveThirty-fourth, if the input needed by production is limited and the industry expands, resulting in an increase in the cost of all firms on the market, then the long-run market supply curve for an item may beYour answer: CSubject score: 0.5Score: 0.5Annotation: as the factor supply is limited, as the demand for the product increases, the demand for this factor increases, the factor price rises, the product cost increases, and the supply curve tilts to the right.In the thirty-fifth question, in the long run equilibrium of the perfect competition market, what statement is wrong about the operating state of an enterprise?Your answer: BSubject score: 0.5Score: 0.5Note: marginal revenue equals marginal cost, and economic profit equals 0.Which of the following thirty-sixth questions is not true about price discrimination?Your answer: CSubject score: 0.5Score: 0.5Note: price discrimination adds to the welfare of consumersThe supply curve of the thirty-seventh question monopolist is Your answer: ESubject score: 0.5Score: 0.5Annotation: there is no supply curve in monopoly marketThirty-eighth, the price charged by the government to force natural monopolies is equal to its marginal costYour answer: DSubject score: 0.5Score: 0.5Annotation: because monopoly market has the characteristics of scale economy, average cost decreases, so marginal cost is less than average cost, and the firm loses according to marginal cost pricing.Thirty-ninth, if the marginal benefit is greater than the marginal cost, a monopolist shouldYour answer: ASubject score: 0.5Score: 0.5Annotation:The fortieth question is that if an oligopoly individual chooses to maximize the profit level of production, the price it collects isYour answer: BSubject score: 0.5Score: 0.5Note: the oligopoly market is between perfect competition and complete monopoly, and the output is less than the perfectly competitive market, but larger than the total monopoly market. The price is less than the total monopoly market, but larger than the perfectly competitive marketTotal score: 20Job Master notation:。
中国石油北京《宏观经济学》第一次在线作业
中国石油北京《宏观经济学》第一次在线作业The first time onlineIndividual choiceThe relationship between macroeconomics and microeconomics is ()A, independentB, they are based on common theoriesC, the two are theoretically connected and contradictoryD, with different macroscopic theoretical systems, the relationship between the two is quite differentThe main task of macroeconomics ()We should seek full employment, stabilize prices, increase economic growth and balance the balance of paymentsB, the macroeconomic policies of finding full employment, suppressing prices, balancing interest rates and balanced investmentWe should establish a macroeconomic theory of full employment, price stability, economic growth and international balance of paymentsThe macroeconomic theory of full employment, price suppression,balanced interest rates and balanced investment is establishedQuestion 3 which is the most important part of modern macroeconomicsA, Keynes's "currency theory"John Maynard Keynes's general theory of employment, interest and moneyC. Marshall's money, credit and businessAdam Smith's wealth of nationsQuestion 4. Which of the following is not the basic question of macroeconomics? (a)A, how does the national income of the period decideB, the cause of a country's economic fluctuationC, which causes the long-term economic growth of a country D, the general happiness of living in a countryTopic 5 the central theory of macroeconomics is ()A, price determination theoryB, salary decision theoryC, national income decision theoryD, exchange rate decision theoryIn Keynes's view, the cause of the capitalist depression wasA, effective demand is insufficientB, shortage of resourcesC, backward technologyD, the economy is inefficientArticle 7 the classical macroeconomic theory holds that the reason for full employment is ()A, government regulationB, nominal wage rigidityC, nominal wage flexibilityD, the money supply is moderateArticle 8 the gross national product of a country is greater than the gross domestic product, which means that the income of the country's citizens from foreign income () is obtained from the country.A, is greater than theB, less thanC, is equal to theD, not sureArticle 9 investment in economics refers to ()A, the enterprise adds an inventoryB, build a houseC, the enterprise buys a computerD, the above are"Investment" is included in the statistics of GDP and net national productionA, any durable consumer goods produced by the government department, such as A new highwayB, any common stock purchased for a new issueThe amount of inventory increased by the end of the year compared to the beginning of the yearD, consumers buy anything that is not consumed by the end of the yearThe 11th is considered to include two activities in GDP: (1) the estimated rent for a free house, (2) purchase a new home ().A, (1) and (2) will be included as consumption in GDPB, (1) as consumption, and (2) as investment is included in GDPC, (1) as investment, and (2) as consumption is included in GDPD, only (2) is included in GDP as an investmentQuestion 12. Which of the following is not included in the GDP calculationA, A shipment of goods abroadB, a government grant to poor familiesC, the economy is a commission on the sale of an old houseThe insurance company receives a family property insurance premiumWhich of the following is included in GDP? (a)Buy A used bicycleB, buy common stockC, the car manufacturer buys 10 tons of steelD, the bank charges a corporation a loan interestQuestion 14 known at the beginning of a country's stock of capital goods is us $1 trillion, it in this year's $250 billion to the production of capital goods, capital consumption depreciation is $200 billion, the country in this year's total investment and net investment are ()A, $250 billion and $50 billionB, $1250bn, and $1050bnC, $250 billion and $200 billionD, $750 billion and $800 billionThe following items may be remembered as government purchases of products or services except ()A, buy new bombersB, your grandmother received the social security deposit paid by the monthC, the U.S. military factory builds a new protective wallD, New York City employs new police officersProblem 16. If OPEC oil cartel collapses, then oil prices fall sharplyA, the GDP deflator and the CPI consumer price index will fall at the same rateB, the GDP deflator is going down faster than the CPIC and CPI will fall faster than the GDP deflatorD, GDP deflator and CPI will not changeQuestion 17 assumes you bought a new house for $150,000 and stayed in the national income account:A, consumer spending increased by $150,000The added value of B and consumer spending is $150,000 divided by the number of years you would expect to live in this houseThe added value of C and consumer spending is the rent for the house, which is equal to the price of the rental market when the house is leasedD, consumer spending is the sameQuestion 18. If the price of tractors imported from Russia to the United States goes down, that will make ()A, the GDP deflator fell, the CPI roseB, the GDP deflator goes up, the CPI goes downC, the GDP deflator is the same, the CPI goes downD, the GDP deflator and the CPI are the sameArticle 19 the GDP per person of the two countries is the same, in which case the actual living standards of the country are higher than that of b ().The defense products of the country of A and the countries are higher than that of bB, the transfer of the country is higher than that of BThe total investment of C and a country is higher than that of bThe non-market activities of D and a are higher than that of b20 questions assume that American iron and steel company for $3000 to sell steel to Chrysler, steel is used to build a sailboat, after the sailing for the price of 12000 was sold to a new trader, automakers to a 14000 price to sell the sailing to a family, in the process, the increase of GDP is: ()A, $29000,B, $26000C, $14000D, $12000Problem 21 during inflation,The nominal GNP increases at the same rate as the actual GNPThe nominal GNP increases faster than the actual GNPC, real GNP increases faster than nominal GNPD, the correlation between nominal GNP and actual GNP growth rates is not possibleQuestion 22If personal income equal to $570, and personal income tax, equal to $60, consumption is equal to $430, total interest payments for $10, personal savings of $70, personal disposable income is equal to ()A, $510B, 470 dollarsC, 500 dollarsD, $480Number 23, assuming 1980-1990, nominal GDP increased from $1 trillion to $2.5 trillion, and the price index increased from 100 to 200. Which of the following is used in 1980 for 1990 GDP?(a)A, $1 trillionB, 1.25 trillion dollarsC, 2.5 trillion dollarsD, $5 trillionQuestion 24 assumes that the nominal GDP of $2000 in 50 billion, if the calculation of gross domestic product in 2005 than the base year doubled, and the actual output increased by 50% compared with that in the base, the nominal GDP in 2005 to ()A, $75 billionB, 100 billion dollarsC, 150 billion dollarsD, $200 billionQuestion 25. Under the following () conditions, you like to be a debtor?A, the nominal interest rate is 20%, and the inflation rate is 25%B, the nominal interest rate is 15%, and the inflation rate is 14%C, the nominal interest rate is 12%, and the inflation rate is 9%D, nominal interest rate is 5%, inflation is 1%Number 26 is the sign of economic growthA, the decline in unemploymentB, the use of advanced technologyC, the decrease in inflationD, the increasing capacity of social productionQuestion 27 which of the following options is not the determinant of productivity ()A, physical capitalB, human capitalC, the price levelD, technical knowledge,In the long run, the source of economic growth is ().A, the increase in the number of years for the workers' education;B, to realize the specialization of labor;The quantity and quality of C, land, machinery, equipment and infrastructure.D, the rate of technological progressQuestion 29. Which of the following is both a store of value and a common medium of exchange? (a)A, corporate bondsB, mutual funds,C, check accountD, that's rightIn the same case, if the maturity of the bond is extended, the bond needs to be paidA, lower interest, because the risk is lowerB, lower interest, because the risk is increasedC, higher interest, because the risk is increasedD, maturity is not about riskWhen interest rates go down very low, the risk of people buyingbonds will ().A, is smallB, become very bigC, it could be big or smallD, no changeIf the nominal money supply increases by 6 percent, the price level rises 4 percent, and the output increases 3 percent, according to the quantity equation, the velocity of the currency is ().A, up 13%B, up 7%C, up 3%D, up 1%Problem 33 assumes that economic output is the potential output, which is fixed. Assuming that the velocity of money is fixed at 3, the annual growth rate of the money supply is 3%, and the following () is correctThe annual inflation rate will be 1%The annual inflation rate will be 3%The annual inflation rate will be 6%The annual inflation rate will be 9%Article 34 the discount rate that the bank applied for discount to the central bank is increased.A, the amount of reserves the bank wants to keep will increaseB, the bank reserves will be reducedThe amount of reserves that the bank wants to keep remains the sameD, all of these things are possibleArticle 35 when the legal preparation rate is 20 percent, the amount of money the bank can create is the total amount of money that the bank can create when the initial deposit of a commercial bank is 3, 000A, 20000 monetary unitB, 80000 monetary unitC, 15000 monetary unitD, 60000 monetary unit36 the topicIf someone loses his job because of the steel industry, this is a job lossA, the frictional unemploymentB, structural unemploymentC, cyclical unemploymentD, permanent unemploymentProblem 37. Natural unemploymentA, constant is zeroB, depends on the price levelC, the unemployment rate when the economy is at a potential levelProblem 38 is the right thing to say about natural unemploymentA, the natural rate of unemployment is constantB, the natural unemployment rate is the lowest unemployment rate in historyC, natural unemployment includes frictional unemployment and structural unemploymentProblem 39. If the public decides to hold more currency and reduce bank deposits, bank reservesA and the money supply eventually fellB, decrease, the money supply doesn't changeThe supply of money eventually increasesD, increase, money supply doesn't changeIf the reserve ratio is 20 percent, the bank is not overprepared, so if the federal reserve sells $40 million of bonds to the public, then the bank reservesA, up $40 million, and the money supply eventually increased by $200 millionB, $40 million, and the money supply eventually increased by $800 millionC, $40 million, and the money supply eventually fell by $200 millionD, the decrease of $40 million, money supply eventually reduce $800 million no upload homework answer, first for you review, if you look at me - to answer specific registered name for cable - taking。
中国石油大学远程教育微观经济学第一次在线作业
第1题完全垄断厂商的总收益与价格同时下降的前提条件您的答案：A题目分数：0.5此题得分：0.5批注：当一种产品的需求富于弹性的时候，降低价格会增加厂商的总收益。
第2题如果垄断厂商有线性需求曲线，那么总收益增加时（）您的答案：B题目分数：0.5此题得分：0.5批注：边际收益线位于需求曲线的下方，边际收益线是递减的第3题实行价格歧视的条件不包括您的答案：B题目分数：0.5此题得分：0.5批注：市场的需求具有弹性，不是竞争性的市场第4题在得出某种商品的个人需求曲线时，下面因素除哪一种外均保持为常数您的答案：D题目分数：0.5此题得分：0.5批注：我们得出需求法则的时候，假设其他因素不变，分析价格和这种商品需求量之间的关系。
第5题某商品的个人需求曲线表明了您的答案：A题目分数：0.5此题得分：0.5批注：个人愿望的最大限度第6题下列因素除哪一种以外会使需求曲线移动您的答案：B题目分数：0.5此题得分：0.5批注：商品价格只会使商品的需求量沿着同一条需求曲线移动。
第7题如果商品A是商品B的替代品，则A的价格下降将造成您的答案：D题目分数：0.5此题得分：0.5批注：比如大米的价格下降，将会使大米的需求量增加，使面粉需求量减少。
第8题一个商品价格下降对其互补品的影响您的答案：A题目分数：0.5此题得分：0.5批注：比如汽车的价格下降，汽车需求量上升，汽油的需求量也上升。
第9题如果某种商品供给曲线斜率为正，如果保持其他因素不变的条件，该商品价格上升，导致您的答案：B题目分数：0.5此题得分：0.5批注：供给量和供给不是一个概念，供给量表现为商品价格变化时，供给量沿着同一条供给曲线上下移动，第10题市场上某种商品存在超额需求您的答案：A题目分数：0.5此题得分：0.5批注：超额的需求，使需求大于供给，均衡价格位于市场价格的下方。
第11题直线型需求曲线的斜率不变，因此其价格弹性也不变，这个说法您的答案：B题目分数：0.5此题得分：0.5批注：不正确，在需求曲线上的不同点，需求价格弹性是不一样的。
中国石油大学 经济法 第一次在线作业
第一次在线作业单选题(共40道题)收起1.（2.5分）作为科学的经济法概念，作为一个独立部门的经济法，其发源地一般被认为是（）。
•A、日本•B、德国•C、美国•D、法国•E、苏联我的答案：B 此题得分：2.5分2.（2.5分）美国在1890年颁布了第一部完整意义上的经济法典（）。
•A、《自然法典》•B、《公有法典》•C、《谢尔曼法》•D、《国家工业托拉斯条例》•E、《经济哲学初步入门或文明状态分析》我的答案：C 此题得分：2.5分3.（2.5分）在现代西方国家，基于市场经济而产生的（）是经济法的核心部分，并处于“经济宪法”的地位。
•A、反垄断法•B、企业法•C、经济监督法•D、计划法•E、经济管理法我的答案：A 此题得分：2.5分4.（2.5分）下列关于经济法本质属性的说法不正确的是（）。
•A、经济法是个体权利本位法•B、经济法是平衡协调法•C、经济法是系统调整法•D、经济法是公私兼顾的法•E、经济法是社会责任本位法我的答案：A 此题得分：2.5分5.（2.5分）经济法所调整的经营协调关系不包括（）。
•A、由国家规划发生和制约的横向经济关系•B、与国家经济管理直接、密切联系的横向经济关系•C、各行业、各地区、各组织之间联合、协作和进行经济平衡时发生的经济关系•D、有关全局、整体和长远利益的经济关系•E、体现当事人意思自治的平等主体间的财产关系我的答案：E 此题得分：2.5分6.（2.5分）（）不是经济法的基本原则。
•A、遵循经济规律的原则•B、私有财产神圣不可侵犯原则•C、国家调控市场、市场引导企业的原则•D、有序竞争的原则•E、责权利效相统一的原则我的答案：B 此题得分：2.5分7.（2.5分）下列不属于经济法的渊源的是（）。
•A、全国人民代表大会及其常务委员会制定的法律•B、行政法规和部门规章•C、地方性法规和政府规章•D、经济法学者的学说•E、国家经济政策和习惯我的答案：D 此题得分：2.5分8.（2.5分）（）属于经济组织法。
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好资料学习-----第一次在线作业)道题单选题(共40收起（2.5分）以下哪一项关于微观经济学和宏观经济学的表述是不正确的1.?A、对极其大行业的研究是宏观经济学范围内的问题?、不能把微观经济学和宏观经济学完全分开B?、宏观经济学关注整体经济现象C?、微观经济学是宏观经济学的建筑材料D我的答案：A 此题得分：2.5分以下哪一个问题最可能被微观经济学家所研究分）2.52.（?A、赤字对储蓄的影响?、政府支出的总水平对经济的影响B? C、汽车行业中的劳动就业?D、技术对经济增长的影响我的答案：2.5C 此题得分：分生产可能性边界上的点是（3.2.5分）?A、有效率的?、无效率的B? C、不能达到的? D、规范的我的答案：分此题得分：A 2.5若一条直线型的需求曲线与一条曲线型的需求曲线相切，则在切点处两曲线的需求价格弹性分）2.5（4.（）?、相同A更多精品文档．-----好资料学习?B、不同?、可能相同也可能不同C?D、依切点所在位置而变我的答案：分此题得分：2.5A若需求曲线为向右下倾斜的直线，则当价格从高到低不断下降时，卖者的总收益5.（2.5分）?、不断增加A?、在开始时趋于增加，达到最大值后趋于减少B?、在开始时趋于减少，达到最大值后趋于增加C?、不断减少D我的答案：B 此题得分：2.5分两种商品中若当其中一种的价格变化时，这两种商品的购买量同时增加或减少，则这两者的分）2.5 6.（交叉需求价格弹性系数为?A、负?、正B?0 、C?A、D我的答案：A 此题得分：分2.5某商品的市场供给曲线是一过原点的直线，则其供给的价格弹性（7.2.5分）?、随价格的变化而变化A?A 、恒为B?C、为其斜率值?、不可确定D我的答案： B 2.5此题得分：分更多精品文档．-----好资料学习政府为了增加财政收入，决定按销售量向卖者征税，假如政府希望税收负担全部落在买者身分）8.（2.5上，并尽可能不影响交易量，那么应该具备的条件是? A、需求和供给的价格弹性均大于零小于无穷?、需求的价格弹性大于零小于无穷，供给的价格弹性等于零B?、需求的价格弹性等于零，供给的价格弹性大于零小于无穷C? D、需求的价格弹性为无穷，供给的价格弹性等于零我的答案：分C 此题得分：2.5 2.5分）小麦歉收导致小麦价格上升，准确的说，在这个过程中（9.?、小麦供给水平的下降引起需求量下降A?、小麦供给水平的下降引起需求水平下降B?、小麦供给量的减少引起需求量下降C?、小麦供给量的减少引起需求水平下降D我的答案：分此题得分：A 2.510.（2.5分）在需求水平和供给水平同时下降的情况下? A 、均衡价格和均衡数量都将下降? B 、均衡价格将下降，均衡数量的变化无法确定? C 、均衡价格的变化无法确定，均衡数量将减少? D 、均衡价格将上升，均衡数量将下降我的答案：D 此题得分：2.5分无差异曲线的形状取决于分）（11.2.5?A、消费者偏好?、消费者收入B?C、所购商品的价格? D 、商品效用水平的大小更多精品文档．学习-----好资料我的答案：此题得分：2.5分A由横轴度量，X的消费已达饱和分）若某条无差异曲线是水平直线，这表明该消费者对（）（设12.（2.5 由纵轴度量）Y?X 、商品A?YB、商品?Y 和商品C 、商品X?D、都不是我的答案：分此题得分：2.5A Y的边际替代率等于它们的无差异曲线上任一点商品X和（13.2.5分）? A、价格之比?、数量之比B? C、边际效用之比?D、边际成本之比我的答案：2.5分此题得分：C随着收入和价格的变化，消费者的均衡也发生变化。
假如在新的均衡下，各种商品的边际14.（2.5分）效用均低于原均衡状态的边际效用，这意味着?、消费者生活状况有了改善A?B、消费者生活状况恶化了?、消费者生活状况没有变化C? D、无法确定我的答案：此题得分：A 2.5分 2.515.（分）假定MRSXY> 的价格已定，当PX/PY时，消费者为达到最大满足，他将YX、?Y 、增购A X，减少?Y、减少B，增购X更多精品文档．好资料学习-----?Y 、、同时增购X C?Y、、同时减少X D我的答案：分此题得分：2.5A正常物品价格上升导致需求量减少的原因在于分）16.（2.5? A、替代效应使需求量增加，收入效应使需求量减少? B、替代效应使需求量增加，收入效应使需求量增加? C、替代效应使需求量减少，收入效应使需求量增加? D、替代效应使需求量减少，收入效应使需求量减少我的答案： 2.5分C 此题得分：是APL为正但递增时，MPL当17.（2.5分）?、递减A?、负的B?、零C?、大于平均产量D我的答案： 2.5分此题得分：D下列说法中错误的是18.（2.5分）?、只要总产量减少，边际产量一定是负数A?、只要边际产量减少，总产量一定也减少B?、随着某种生产要素投入量的增加，边际产量和平均产量增加到一定程度将趋于下降，其中边C际产量的下降一定先于平均产量? D、边际产量曲线一定在平均产量曲线的最高点与之相交我的答案： 2.5分B 此题得分：下列说法中正确的是分） 2.519.（?、生产要素的边际技术替代率递减是规模报酬递减造成的A? B 、边际收益递减是规模报酬递减造成的更多精品文档．学习-----好资料?、规模报酬递减是边际收益递减规律造成的C?D、生产要素的边际技术替代率递减是边际收益递减规律造成的我的答案： 2.5分D 此题得分：当某厂商以最小成本生产出既定产量时，那他2.520.（分）?、总收益为零A?、一定获得最大利润B?C、一定未获得最大利润? D、无法确定是否获得最大利润我的答案：分2.5D 此题得分：（21.2.5分）经济学中短期和长期的划分取决于?A、时间长短? B、可否调整产量?C、可否调整产品价格?、可否调整生产规模D我的答案：分此题得分：D 2.5 22.（2.5分）下列说法哪个是正确的?、如果连续的增加某种物品的产量，它的机会成本将递增A? B 、生产可能性边界之所以向外凸，是因为机会成本递增? C 、经济分析中厂商的生产成本与机会成本这两个词是同义词?D、如果一个人选择了上学而不是工作，那他的机会成本等于他在学习期间的费用我的答案：B 此题得分：2.5分（23.2.5长期总成本曲线是各种产量的分）?A、最低成本点的轨迹? B 、最低平均成本点的轨迹更多精品文档．-----好资料学习?C、最低边际成本点的轨迹? D、平均成本变动的轨迹我的答案：分A 此题得分：2.5当收益递减规律发生作用时，TVC曲线24.（2.5分）?A、以一递减的速率上升?、以一递增的速率下降B?、以一递减的速率下降C?D、以一递增的速率上升我的答案：分此题得分：2.5DAC曲线的切点上，在从原点出发的直线与（25.2.5分）TC?、是最大A?MC 、等于B?AVC 、等于C? D、上述都正确我的答案：此题得分：B 2.5分A0单位时，总成本等于995元，产量增加到单位时，平均成本等于A0099 2.526.（分）已知产量为元，由此可知边际成本为?元A0 A、?元5B 、?A5C 、元? D 元7.5、我的答案：2.5B 此题得分：分2.5（27.下列说法中正确的是分）更多精品文档．-----好资料学习?、在产量的某一变化范围内，只要边际成本曲线位于平均成本曲线的上方，平均成本曲线一定 A 向下倾斜?、边际成本曲线达到一定产量水平后趋于上升，是由边际收益递减规律所造成的B?、长期边际成本曲线在达到一定的产量水平以后趋于上升，是由边际收益递减规律所造成的C? D、以上说法都不正确我的答案：分B 此题得分：2.5（28.2.5分）私人市场难以提供公共物品是由于? A、公共物品问题?B、竞争性问题? C、共有地的悲剧?D、搭便车问题我的答案：2.5分此题得分：D29.（2.5分）以下哪一种情况是潜在解决空气污染问题的方法？?、拍卖污染许可证A?B、赋予公民清洁空气的权利，以使企业必须购买污染权?C、规定企业可以排向空气中的污染量? D 、以上各项都不对我的答案：此题得分：2.5分B（30.2.5一条拥挤的收费道路是分）?A、私人物品?B、公共物品?C、公有资源? D 、自然垄断生产的物品我的答案：A 2.5此题得分：分更多精品文档．-----好资料学习当市场不能有效的配置资源时，问题的最终来源通常是（2.5分）31.? A、价格没有高到使人们过度消费?、价格没有低到使企业生产不足B?、没有很好的确定产权C? D、政府管制我的答案：分C 此题得分：2.52.5（分）如果一个竞争企业的产量翻一番，它的总收益32.?、大于翻一番A?、翻一番B?、小于翻一番C?、不能确定，因为物品的价格可能上升或下降D我的答案：分2.5B 此题得分：（33.2.5分）在长期中，竞争企业的供给曲线是?、整个边际成本曲线A?、平均总成本曲线以上的那部分边际成本曲线B?、平均可变成本以上的那部分边际成本曲线C?、平均总成本曲线中向右上方倾斜的部分D我的答案：此题得分：B 2.5分如果生产所需要的一种投入供给有限，以至该行业扩大引起市场上所有企业的成本增加，分）2.534.（那么，一种物品的长期市场供给曲线可能是?A、完全有弹性?、向右下方倾斜B?C、向右上方倾斜? D 、完全无弹性更多精品文档．好资料学习-----我的答案：分C 此题得分：2.5 2.535.（分）在完全竞争市场的长期均衡时，关于企业的经营状态，哪一种说法是错误的?A、它们的平均总成本曲线最低?、边际成本与边际收益相交B?C、他们的有效规模? D、获取了经济利润我的答案：分2.5B 此题得分： 2.5分）以下哪一项关于价格歧视的表述不正确（36.?、价格歧视可以增加经济福利A? B、价格歧视要求，卖者能根据买者的支付意愿把他们分开?C、价格歧视减少了了垄断者的利润我的答案：此题得分：2.5分C垄断者的供给曲线是2.537.（分）?A、是平均可变成本之上的边际成本曲线? B、是平均总成本之上的边际成本曲线?C、是平均总成本曲线向右上方倾斜的那一部分??、是平均可变成本曲线向右上方倾斜的那一部分D? E、不存在我的答案： E 2.5分此题得分：分）（38.2.5 用政府管制迫使自然垄断收取的价格等于其边际成本将?? A 、提高效率?更多精品文档．学习-----好资料? B、提高物品价格?、吸引企业进入市场C? D、引起垄断者退出市场我的答案： 2.5分D 此题得分：如果边际收益大于边际成本，一个垄断者应该（2.5分）39.??A、增加产量?、减少产量B? C、保持产量不变，因为当边际收益大于边际成本时利润最大?D、提高价格我的答案：分此题得分：2.5A如果一个寡头个别的选择使利润最大的生产水平时，它收取的价格是（40.2.5分）?A、大于垄断收取的价格，而小于自由竞争收取的价格??、小于垄断收取的价格，而大于竞争市场收取的价格B? C 、大于垄断或竞争市场收取的价格??、小于垄断或竞争市场收取的价格D我的答案：分此题得分：B 2.5更多精品文档．。