武汉大学经济与管理学院

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1、武汉大学经济与管理学院《西方经济学》试题(A卷)2007年7月6日主讲：陈忠斌　　　　　　　　审核：姓名:学号:分数:　　　1、Whatisthedifferencebetweentheaggregatesupplyandaggregatedemandmodelusedinmacroeconomicsandmicroeconomics？（Score:15）2、Supposeaneconomy’srealGDPis$30,000inyear1and$31,200inyear2.Whatisthegrowthrateofitsrea

2、lGDP?Assumethatpopulationwas100inyear1and102inyear2.WhatisthegrowthrateofGDPpercapita?（Score:15）3、AssumetheconsumptionscheduleforaprivateopeneconomyissuchthatC=50+0.8Y.AssumefurtherthatplannedinvestmentandnetexportsareindependentofthelevelofincomeandconstantatIg=30an

3、dXn=10.Recallalsothatinequilibriumtherealoutputproduced(Y)isequaltotheaggregateexpenditures:Y=C+Ig+Xn.(a)Calculatetheequilibriumlevelofincomeforthiseconomy.(b)WhatwillhappentoequilibriumYifIgchangesto10?Whatdoesthistellyouaboutthesizeofthemultiplier?　（Score:15）4、Whyi

4、seachofthefollowingincorrect?Statethecorrectproposition.（Score:15）a)Marginalrevenueproductiscalculatedastotalrevenueearnedperworker.b)Undercompetition,workersgetpaidthetotaloutputproducedminusthecostsofrawmaterials.5、Drawthesupplyanddemandcurvesfortheoilmarket..Nowsu

5、pposethataworkableelectriccarshiftsdemandawayfromoil.Drawthenewdemandcurveandthenewequilibrium.Describetheoutcomeintermsofthepriceofoil,thequantityconsumed,andthetotalincomeoftheoilproducers.6..Usingthesupplyanddemandanalysisofinterest,explainhoweachofthefollowingwou

6、ldaffectinterestratesincapitaltheory:（Score:15）a.Aninnovationthatincreasedthemarginalproductofcapitalateachlevelofcapital.b.Adecreaseinthedesiredwealthholdingsofhouseholds.c.A50percenttaxonthereturnoncapital(intheshortrun)7、Whatiscomparativeadvantage?SupposethatTompr

7、oducehalfkilogrambeefandtwokilogrampotatoesperhour.Jerryproduces1.5kilogrambeefand3kilogrampotatoesperhour.Whoshould11producebeef?Whoshouldproducepotato?（Score:10）11武汉大学经济与管理学院《西方经济学》(A卷)参考答案2007年7月6日1.宏观经济学的总供给和总需求模型看起来、听起来都与微观经济学的标准供求模型极为相似，它们是否有联系？Whatisthediffere

8、ncebetweentheaggregatesupplyandaggregatedemandmodelusedinmacroeconomicsandmicroeconomics？（15分）答：1.Theaggregatesupplyandaggregatedem