2014年 春季学期 经济学原理2 期中1 清华

2014年清华大学431金融学综合考研真题一、选择题：1、商业银行最基本的职能是：A.信用中介B.支付中介C.信用创造D.金融服务2、为保持银行的清偿能力和流动性，商业银行贷款的期限结构必须与下列哪一项的期限结构匹配：A.存款和中间业务B.资产C.经营D.存款与其他负债3、以下哪个不属于我国M1的统计范畴：A.居民持有的现钞B.企业持有的现钞C.企业的活期存款D.居民的活期存款4、什么确定了中央银行在金融体系中的核心和主导地位，确定了中央银行对金融机构实施金融监督管理的必然性与必要性。

A.依法实施货币政策B.代理国库C.充当“最后贷款人”角色D.集中与垄断货币发行5、如果金银的法定比价是1：14，而市场比价是1：15，这时，充斥市场的将是A.银币B.金币C.金币和银币同时D.都不是6、商业银行利用资本金来应对：A.预期损失B.非预期损失C.灾难性损失D.以上全部7、在美国境内的XYZ公司，有一笔7.5亿日元的应付款，需要在一年后支付给东京银行。

目前即期汇率是RMB116/D1.00，一年远期汇率是RMB109/D1.00.美元的年利率为6%，日元为3%.XYZ公司也可以购买以0.0086美元/日元为执行价格的一年期的日元看涨期权，成本为0、0012美分/日元。

如果远期汇率是对未来即期汇率的最佳的预期，若用期权对冲，一年后总支付的美元价值是：A.美元6，450，000B.美元6，545，400C.美元6，653，833D.美元6，880，7348、固定汇率9、一个投资项目有如下信息：内部收益率（IRR）8、7%；利润率：98%净现值：-393美元；回收期：2、44年资本成本：9、5%以下哪个陈述是对的？A.用于计算净现值的折现率必须小于8、7%B.按照净现值该项目应该被接受C.按照利润率项目应该被接受D.按照内部收益率项目应该被拒绝10、公司财务经理的责任是增加：A.公司规模B.公司增长速度C.经理人的能力D.股东权益价值11、如果你父母每年年初给你10000元钱。

经济学原理II（2007年春季学期）期中考试2（A卷答案）（2007/5/14）注意：请全部用中文回答（留学生可用英文）。

请将所有题目的答案写在答题册上并标明A、B卷，写在本试题纸上一律无效。

考试结束后，试题纸和答题册一并上交。

一、判断题（判断并必须说明理由，必要时可以用图形。

每题4分，共28分。

）1.一国生产其所需要的全部产品而不从事国际贸易，能够使得该国的经济更快地增长。

错误。

国际贸易使得该国生产其具有比较优势的产品并从交换中获益，并没有减少该国的总产出。

相反，国际贸易带来经济增长，这与技术进步的影响类似。

2. A higher rate of saving leads to higher growth indefinitely.False. A higher rate of saving leads to higher growth temporarily but not indefinitely. Since capital is subject to diminishing returns, as the higher saving rate allows more capital to be accumulated, the benefits from additional capital become smaller over time, and so growth slows down.3.From 1950 to 2000, manufacturing employment as a percentage of total employment in theU.S. economy fell significantly. At the same time, manufacturing output experienced slightly more rapid than the overall economy. Policy makers should concern about the decline in the share of manufacturing employment.False. If manufacturing output is rising and the number of workers is declining, then output per worker, or labor productivity, must be rising, and this is beneficial to the economy. After all, the reduction in manufacturing jobs will allow labor resources to move to other industries, increasing total output in the economy.4.You use your $200 paycheck to buy bond in AT&T. This situation represents investment asdefined by a macroeconomist.错误。

清华大学社科学院2014年春季《经济学原理》（宏观部分）期末考试试题一、不确定选项选择题（每题1分，共20分；选对给分，选错不扣分）1、宏观经济学与微观经济学的关系是（）A．微观经济学是研究既定（稀缺）资源有效配置的科学，宏观经济学则是研究资源充分利用的科学；B．宏观经济分析和微观经济分析是互为前提、互相补充的；C．微观经济学是宏观经济学的基础；D．微观经济学和宏观经济学基本采用相同的分析方法；E．以上说法全都正确。

2、在一个有家庭、企业、政府和国外部门构成的四部门经济中，GDP是下面哪一个选择中各项的和（）A．消费、总投资、政府在商品和劳务上的支出、净出口；B．消费、净投资、政府在商品和劳务上的支出、净出口；C．国民收入和间接税；D．工资、租金、利息、利润和折旧。

3、下列哪一种情况可能是物价水平上升和实际国民生产总值减少的原因（）A．预期未来的利润率上升；B．总财产减少；C．原料价格上升；D．资本存量增加。

4、假定货币供给量和价格水平不变，货币需求为收入和利率的函数，则收入增加时（）A．货币需求增加，利率上升；B．货币需求增加，利率下降；C．货币需求减少，利率上升；D．货币需求减少，利率下降。

5、在经济萧条时期，政府可以选择的货币政策是( )A．降低法定准备率；B．中央银行在公开市场上买进政府债券；C．中央银行在公开市场上卖出政府债券；D．降低再贴现率；E．提高再贴现率。

6、中央银行的负债项目包括（）A．流通中的通货；B．政府及公共机构的存款；C．商业银行等金融机构存款；D．其他负债。

7、宏观经济学研究的中心理论是：( )A．失业与通货膨胀理论B．国民收入决定理论C．经济周期理论D．经济增长理论8、以下选项中，（）不属于政府购买。

A．地方政府出资办了一所中学；B．政府定购军火；C．政府为低收入者提供一笔住房补贴；D．政府给公务员增加薪水。

9、比较存在所得税的政府购买对GDP的作用与没有所得税时政府购买对GDP的作用，前者的作用（）。

经济学原理期中考试试题一、选择题（每题只有一个正确答案，10小题，每题2分，共20分）1、“资源是稀缺的”是指（）A、资源是不可再生的B、资源必需留给下一代C、资源终将被消耗殆尽D、相关于需求而言，资源老是不足的2、小强礼拜六下午决定学习三个小时，而不是去打网球。

请问他学习的机遇本钱是（）A、学习三个小时后，学习成绩的提高B、学习成绩的提高减去打网球带来的欢乐C、从打网球中取得的欢乐和锻炼D、没有机遇本钱3、以下哪一项为哪一项宏观经济学研究的内容：（）A、政府管制对民航机票价钱的阻碍B、农人决定今年种植多少粮食的决策C、加入WTO对中国汽车企业的阻碍D、中国的高储蓄对经济增加的阻碍4、以下哪一种表述是实证而非标准的表述：（）A、我国政府应该调高人民币汇率B、农人工的合法权益理应取得保障C、印度去年的GDP增加率为9%D、咱们必需要遏制经济过热的势头5、以下哪个概念不能用生产可能性边界表现出来？（）A、效率B、公平C、衡量取舍D、机遇本钱6、假定在某个市场中，消费者用于购买正常品的收入减少，而生产该物品的投入品的价钱下降。

那么，咱们能够预期：（）A、均衡价钱将上升，但对该市场均衡数量的阻碍那么是不确信的。

B、均衡价钱将下降，但对该市场均衡数量的阻碍那么是不确信的。

C、均衡价钱与均衡数量都上升。

D、均衡数量将上升，但对该市场均衡价钱的阻碍那么是不确信的。

7、当禽流感到来时，鸡蛋的销量下降了，但价钱却没有太大的转变。

对此说明最为合理的是：（）A、鸡蛋的供给曲线呈完全水平状态，而需求曲线左移B、鸡蛋的需求曲线呈完全水平状态，而供给曲线左移C、鸡蛋的供给曲线和需求曲线都发生了左移D、这种现象违抗了供求理论，属于异样现象8、某月内，某种商品的替代品的价钱上升，其互补品的价钱也上升，别离引发该商品的需求量变更50单位和80单位，那么在它们一起作用下该月这种商品的需求数量（）A、减少30单位B、增加30单位C、减少130单位D、增加130单位9、某商品的价钱上升了2%，其需求量下降了12%，以下哪个陈述最适用该商品？A、该商品几乎没有相近的替代品。

电子科技大学二零一四至二零一五学年第一学期期中考试经济学II 课程考试题 A 卷（90 分钟）考试形式：闭卷考试日期：2014年11月3 日分得一、判断题（正确的打“√”，错误的打“×”，每小题2分，共20分）（√）1．Macroeconomics examines the behavior of economic aggregates. Microeconomics is the foundationof Macroeconomics.（√）2．If the Fed buys government bonds, the equilibrium value of money decreases and the equilibriumprice level increases.（√）3．The slope of the saving curve is positive and increasing in income Y.（×）4．GDP can measure either the total income of everyone in the economy or the total expenditure on themeasure both at the same time.economy's output of goods and services, but GDP cannot（√）5．The basic tools of supply and demand are as central to macroeconomic analysis as they are to microeconomic analysis.（×）6．The Federal Reserve is a privately operated commercial bank.（√）7．An economy's income is the same as its expenditure because every transaction has a buyer and aseller.（×）8．The consumer price index is used to monitor changes in an economy's production of goods andservices over time.（×）9．When economists refer to investment, they mean the purchasing of stocks and bonds and other typesof saving.（√）10．Banks cannot influence the money supply if they hold all deposits in reserve.得分二、单项选择题（每小题2分，共40分）1 / 7（ D ）1．Dead-weight costs of inflation include:A．Informational costs B．Menu costs C．Shoe-leather costs D．All above（ A ）2．Unemployment rate isA．percentage of the labor force that is unemployedB．the fraction of the adult population that ‘participates' in the labor forceC．percentage of labor force that is not employed and not looking for workD．None of the above（ A ）3．If the spontaneous consumption decreases, the IS curve willA．shift to left B．shift to right C．be unchanged D．move down（ D ）4．Institutions that help to match one person's saving with another person's investment are collectively called theA.Federal Reserve system.B.banking system.C. monetary system.D. financial system.（ D ）5．Suppose that in 2010, the producer price index increases by 2 percent. As a result, economists most likely will predict thatA. GDP will increase in 2011.B. the producer price index will increase by more than 2 percent in 2011.C. interest rates will decrease in the future.D.the consumer price index will increase in the future（D ）6．Economists use the term money to refer to A. all wealth.B. all assets, including real assets and financial assets.C. all financial assets, but real assets are not regarded as money.D. those types of wealth that are regularly accepted by sellers in exchange for goods and services.（ B ）7．Which one is commodity money below?A．Token B．Silver C．Fiat D．Legal tender（ A ）10．China's saving rate in 2008 is about2 / 7A．51.3% B．60% C．5% D．71.3%（ B ）8．Which of the following changes will decrease investment?A．A doubling of the annual revenues. B．A rise in interest rates.DAn increase in tax rate on net profits ．All aboveC．（D ）9．Money is not income, and money is not wealth. Money is:A．a means of payment B．a store of valueD ．All of above.C．a unit of account（ A ）10．M1, or transactions money is money that can be directly used for transactions. It includes: A．currency held outside banks B．all personal depositsD．All above.C．non-checkable deposits（ A ）11．The central bank performs important functions, but not including:A．Set the tax rateB．Clearing interbank paymentsC．Regulating the banking systemD．All of above（ B ）12．The IS model shows the relationship betweenA．Y & P B．Y & r C．P & r D．I & S（ D ）13．Consider the following three items of spending by the government: (1) the federal governmentpays a $500 unemployment benefit to an unemployed person; (2) the federal government makes a $2,000 salarypayment to a Navy lieutenant; (3) the city of Bozeman, Montana makes a $10,000 payment to ABC LightingCompany for street lights in Bozeman. Which of these payments contributes directly to government purchasesin the national income accounts?A．(1) B．(2)C．(1) and (2) D ．(2) and (3).（ C ）14．An American soldier stationed in California receives a paycheck from the federal government for$500, which she uses to purchase a $300 stereo made in Korea by a Korean firm and $200 worth of groceriesproduced in California. As a result, U.S. GDP increases byA．$200B．$500 C．$700 D．$1000（ D ）15．When economists talk about growth in the economy, they measure that growth as the3 / 7A．absolute change in nominal GDP from one period to another.B．percentage change in nominal GDP from one period to another.C．absolute change in real GDP from one period to another.D．percentage change in real GDP from one period to another.（ C ）16．Many things that society values, such as good health, high-quality education, enjoyable recreationopportunities, and desirable moral attributes of the population, are not measured as part of GDP. It follows thatA．GDP is not a useful measure of society's welfare.B．GDP is still a useful measure of society's welfare because providing these other attributes is the responsibility of government.C．GDP is still a useful measure of society's welfare because it measures a nation's ability to purchase theinputs that can be used to help produce the things that contribute to welfare.D．GDP is still the best measure of society's welfare because these other values cannot actually be measured.（ B ）17．During a presidential campaign, the incumbent argues that he should be reelected because nominalGDP grew by 12 percent during his 4-year term in office. You know that population grew by 4 percent over theperiod and that the GDP deflator increased by 6 percent during the past 4 years. You should conclude that realGDP per personA．grew by more than 12 percent. B．grew, but by less than 12 percent.D ．C．was unchanged.decreased.（ D ）18．In the IS model, endogenous variable(s) is (are)A．consumption B．investment C．saving D．all above variables（ B ）19．If the consumption function is C = 100 + 0.75Y, the MPS isA．100 B．0.25 C．0.75 D．None of the above（ A ）20．The multiplier of transfer payment isA．MPC/(1-MPC ) B．-MPC/(1-MPC )C．1/(1-MPC ) D．-1/(1-MPC )得分40分）三、计算题（共1. The table below contains data for the country of Wrexington for the year 2009.4 / 7$5731Total income$1108Household purchases of durable goods$702Household purchases of nondurablegoods$203Household purchases of non-education services$302Household purchases of education services $816Household purchases of new housing$333Purchases of capital equipment$75Inventory changes)分a). (2What was Wrexington's GDP in 2008?GDP= Totalincome=$5731=C+I+G+NX=2315+1491+1837+88)分(2 b).What was Wrexington's consumption in 2008?Consumption= Household purchases of durable goods+ Household purchases of nondurable goods+ Household purchases of non-education services+ Household purchases of education services=$2315)(2分c). What was Wrexington's investment in 2008?Investment= Household purchases of new housing+ Purchases of capital equipment+ Inventory changes+ Purchasesof new structures=$1491) (2分d). What were Wrexington's government purchases in 2008?Government purchases= Local government spending on goods and services+ State government spending on goodsand services+ Federal government spending on goods and services= $1837)分e). (2What were Wrexington's net exports in 2008?Net exports= Foreign purchases of domestically produced goods- Domestic purchases of foreign goods= $882. Consider an economy A described by the following equations:2.NX, G + I = C + + Y= 5,000, Y= 1,000, G= 1,000,T), T ? = 250 + 0.75(C Yr, 50?I = 1,000500e, = 500 NX ?* = 5.= r r5 / 7a. In this economy, solve for national saving, investment, the trade balance, and the equilibrium exchange rate.b. Suppose now that G rises to 1,250. Solve for national saving, investment, the trade balance, and the equilibriumexchange rate.c. Now suppose that the world interest rate rises from 5 to 10 percent. (G is again 1,000.) Solve for national saving,investment, the trade balance, and the equilibrium exchange rate.3The table below contains data for The First Bank of Wahooton. .The First Bank of WahootonLiabilitiesAssets Deposits $150,000Reserves $25,000Loans 125,000Please answer the following questions. (共15分)a). (3分) If the bank faces a reserve requirement of 10 percent, how much excess reserves does the bank have?It has excess reserves of $10,000.(3分) b). If the bank faces a reserve requirement of 10 percent, how much new loan can the bank make?It can make a new loan of $10,000.c). Suppose the bank faces a reserve requirement of 10 percent. Starting from the situation as depicted by the T-account, a customer deposits an additional $50,000 into his account at the bank. If the bank takes no other action,(3分) How much excess reserves will it have?an additional $50,000 →reserve requirement Increase =$50,000 *10%= $5,000excess reserves Increase=$45,000$55,000 in excess reserves.d). to meet itsIf the bank faces a reserve requirement of 20 percent, how much additional reserves does it need(3分)reserve requirements?It needs $5,000 more reserves to meet its reserve requirements.e). If the First Bank of Wahooton is holding $4,000 in excess reserves, what is the reserve requirement with which it(3分)must comply?14 percent.6 / 77 / 7。

）2014年清华大学851西方经济学考研试题
回忆版）
（回忆版
西方经济学考研试题（判断说理题（
（10×3分）
一、判断说理题
涉及到的知识点有:
1.收入效应
2.公共物品
3.垄断
4.汇率升降
5.永久收入假说
6.经济衰退时的货币供应量等
（8×5分）
简答题（
二、简答题
1.契约曲线
2.停止营业点
3.风险溢价
4.宏观经济的长期表现与短期表现
5.财政政策与货币政策的异同
6.信息不对称及方法
7.李嘉图等价
三、计算题4题
1.求利润最大化时的劳动供给
2.博弈论，求均衡结果
3.求法定准备金率下降后，M的变化率
4.索罗模型，求各种增长率
四、论述题2题
1.用经济人假设和委托代理机制分析如何预防腐败
2.外汇储备的由来，以及怎么实现中国的外部经济平衡。

经济学原理 I（2021 年春季学期）期中考试 1（A 卷答案）（2019/4/3）（所有题目答案需写在另发的答题本上，否则无效。

本试卷满分 50 分。

）1.判断以下陈述是否正确，并阐述理由。

（3 分*3 题=9 分）1.1通常将企业的利润看成是“企业家精神”的回报。

和其他生产要素一样，该回报是在竞争性市场上按其边际贡献取得的。

错误。

前半句正确，后半句错误。

利润并非按企业家的边际贡献取得的，而是一种“剩余索取权”。

由于企业家提供了独特的“非竞争性”要素，最终体现在企业产品的独特性上，获得的是一种“垄断性”的回报。

1.2教育的信号理论认为，清华大学的毕业生能获得比其他学校毕业生更高的薪水，是因为清华大学比其他学校拥有更高的教学质量。

错误。

教育的信号理论认为教育的作用是帮助先天能力强的学生发出高质量的信号。

因此清华大学的毕业生能获得更高薪水是因为高质量学生通过选择清华大学才能发出高质量信号。

这种选择机制可能来自于清华大学录取标准高，或者清华大学的课业完成难。

但不一定对应着较高的教学质量。

1.3在市场经济中，每个市场都是由供求力量决定的均衡结果。

所有市场的均衡结果加总成成为经济总的产出和价格。

因此微观经济学足以解释经济整体，不需要有单独考虑经济总产出和价格的宏观经济学。

错误。

所有市场的均衡结果的简单加总忽略了市场之间的相互关联。

这一关联会使得对于整体经济进行分析变得极为困难。

而经济总体的产出和价格的变化规律未必一定要从所有市场的关联中推导出来，实际上某些经济局部的变动相互之间可以抵消。

因此宏观经济学仍然有独立的意义。

2.选择题。

每个题目只有一个正确答案。

（2 分*5 题=10 分）2.1行为经济学中定义的禀赋效应，是指人们对于自己已经拥有的物品的评价（即出售意愿）高于自己尚未拥有时对该物品的评价（即支付意愿）。

以下张三的哪个行为说明了禀赋效应的存在：A.张三愿意花 15 元钱购买一个马克杯，但不愿意以 15 元出售一个马克杯。

经济学原理（2008年春季学期，全校选修课）期中测验2（A卷答案）（2008/5/6）注意：中文回答即可（留学生可用英文）。

请将所有题目的答案写在答题本上并标明A、B 卷，写在本试题册上一律无效。

考试结束后，试题册和答题本一并上交。

一、判断题（判断并简要说明理由，必要时可以用图形。

每题4分，共28分）1．“我们不允许任何人通过付费就可以制造污染。

”（美国前参议员埃德蒙•马斯基的话）错误。

在污染的问题上存在社会收益和成本的权衡，零污染并非社会最优。

向污染者适当收费可以使得污染者将其社会成本考虑在内，达到社会有效率。

2．为了遏制全球变暖问题，每个国家都应该稳定自己现有的二氧化碳排放水平。

错误。

减少（或稳定）二氧化碳总量的排放，并不需要使得每个国家同等程度地减少（或稳定）排放，这样会提高给定排放量下的减排成本。

采取排放许可证等方式，允许减排成本低的的国家进行减排，其并通过出售许可证等方式给予补偿，可以更有效率地达到总水平相同的排放，且各国都受益。

3．集体宿舍的卫生状况坏于单身公寓，原因是集体宿舍住的人多。

错误。

集体宿舍卫生状况坏于单身宿舍，是由于共有地悲剧，即破坏卫生产生了负外部性（或者相反的，打扫卫生产生了正外部性）。

4．对于决定短期内是否停止营业的竞争性企业来说，其固定成本无论如何不能节省，说明这是一个真实的成本。

因此，在做出这一决策时必须将固定成本考虑在内。

错误。

固定成本此时是一种沉没成本，并不影响企业的决策。

因此可以不予考虑。

5．在一个没有垄断力量的（竞争）市场上有正利润的企业必定不在其规模经济处生产；而在一个具有垄断力量的市场上有正利润的企业则可能在其规模经济处生产。

正确。

我们知道，竞争市场上价格等于边际成本，而正利润意味着价格大于平均成本。

因此企业的边际成本必然大于平均成本，而这意味着平均成本上升，必定不在规模经济处。

（另一种推导：反证。

假定在规模经济处，则此时企业增加产量，利润= (P-A TC)*Q，必定上升。

姓名学号班级（A 卷）经济学原理I（2014年秋季学期）期中考试1（A卷答案）（2014/11/15）学术部温馨提示：此处为仅有题目版本，适合对照完全版中答案使用。

可以将此版本打印并配合答题纸模拟考试实况。

1.判断以下陈述是否正确，阐述理由。

必要时画出图形。

（3*4=12分）1.1 政府的支农政策（例如，让农民便宜地购买种子和化肥）导致了粮食增产，这又导致粮食价格下降，从而使得粮食产量减少，而这又使得粮食价格上升。

因此，无法确定粮食市场最终的产量与价格的变化方向。

1.2 Lovers of classical music persuade Congress to impose a price ceiling of $40 per concert ticket. As a result of this policy, more people attend classical music concerts.1.3 电脑行业的技术进步只能使得经济中的电脑产量增加，而经济中其它产品的数量肯定不会增加。

1.4 政府减少土地供给的政策肯定挤出了住房市场上的泡沫，因为这减少了住房市场的均衡数量，从而减少了住房空置率。

2.Multiple Choice. Each problem only has one correct choice. (2*5=10 points)2.1 An economy produces hot dogs and hamburgers. If a discovery of the remarkable health benefits of hot dogs were to change consumers’ preferences, it woulda. expand the production possibilities frontier.b. contract the production possibilities frontier.c.Move the economy along the production possibilities frontier.d. Move the economy inside the production possibilities frontier.2.2 Which of the following is a positive, rather than a normative, statement?a. Law X will reduce national income.b. Law X is a good piece of legislation.c.Congress ought to pass law X.d. The president should veto law X.2.3 Which of the following might lead to an increase in the equilibrium price of jelly and a decrease in the equilibrium quantity of jelly sold?a. an increase in the price of peanut butter, a complement to jellyb. an increase in the price of Marshmallow Fluff, a substitute for jellyc.an increase in the price of grapes, an input into jellyd. an increase in consumers’ incomes, as long as jelly is a normal good2.4 The price of coffee rose sharply last month, while the quantity sold remained the same. Each of five people suggest an explanation:TOM: Demand increased, but supply was perfectly inelastic.DICK: Demand increased, but it was perfectly inelastic.HARRY: Demand increased, but supply decreased at the same time.1姓名学号班级（A 卷）LARRY: Supply decreased, but demand was unit elastic.MARY: Supply decreased, but demand was perfectly inelastic.Who could possibly be right?a. T om, Dick, and Harry.b. T om, Dick, and Mary.c.T om, Harry, and Mary.d. Dick, Harry, and Larry.e. Dick, Harry, and Mary2.5 Which o f the f ollowing w ould i ncrease q uantity s upplied, i ncrease q uantity d emanded, a nd decrease the price that consumers pay?a. the imposition of a binding price floorb. the removal of a binding price floorc.the passage of a tax levied on producersd. the repeal of a tax levied on producersparative Advantage and Gains from Trade (11 pts)Mark and Bob are roommates. Mark can cook dinner in 30 minutes and wash the laundry in 20 minutes. Bob takes 20 minutes to cook dinner and 30 minutes to wash the laundry. The rule of their apartment building requires that each of them should take half of each task, but does not prohibit them from any trading activity.a. How long would Mark and Bob need to finish their own share of both tasks required by therule? Show Mark and Bob’s production possibilities frontier (PPF), by fixing their amount of time available at the level for finishing their required share of both tasks. Label the points representing their required share of tasks on their PPF curves. (Hint: the PPF curve should use share (or percentage) of each task as its X and Y axis. And those shares cannot be larger than one. ) (3 pts)b. What is the most efficient way of allocating tasks between Mark and Bob? The most efficientway is the way that takes the minimum level of total amount of time. Show the efficient task allocation in their PPF curves. (2 pts)c.Mark and Bob decide to trade with each other to improve their welfare (i.e., to save theirown time). What would be the exchange rate between washing and cooking Mark is willing to accept? How about Bob? (2 pts)d. Is there any exchange rate acceptable for both of them and still achieving the most efficientallocation of works? If yes, show it on the graph. If not, explain why not. (1 pt)e. What would be the most favorable exchange rate for Mark? If Mark can force Bob to trade onhis most favorable exchange rate as much as possible, what would be the final allocation of work among them? Show it on the graph. Is this allocation efficient? (3 pts)2．． ． 姓名 学号 班级 （A 卷）4.地铁票价调整（17 分）某城市地铁长期执行一个政府规定的比较低的票价，导致地铁拥挤不堪。