chap3中级宏观经济学答案 华中科技大学.doc

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1、Microeconomics,4e(Perloff)Chapter3ApplyingtheSupply-and-DemandModel3.1HowShapesofDemandandSupplyCurvesMatter1)ThechangeinpricethatresultsfromaleftwardshiftofthesupplycurvewillbegreaterifA)thedemandcurveisrelativelysteepthanifthedemandcurveisrelativelyflat.B)thedemandcurveisrelativelyflatthanifthedem

2、andcurveisrelativelysteep.C)thedemandcurveishorizontalthanifthedemandcurveisvertical.D)thedemandcurveishorizontalthanifthedemandcurveisdownwardsloping.Answer:ATopic:HowShapesofDemandandSupplyCurvesMatter2)ThechangeinpricethatresultsfromarightwardshiftindemandwillbegreaterifA)thesupplycurveishorizont

3、althanifthesupplycurveisupwardsloping.B)thesupplycurveisrelativelysteepthanifthesupplycurveisrelativelyflat.C)thesupplycurveisupwardslopingthanifthesupplycurveisvertical.D)thesupplycurveishorizontalthanifthesupplycurveisvertical.Answer:BTopic:HowShapesofDemandandSupplyCurvesMatter3)Ifthedemandcurvef

4、oragoodishorizontalandthepriceispositive,thenaleftwardshiftofthesupplycurveresultsinA)apriceofzero.B)anincreaseinprice.C)adecreaseinprice.D)nochangeinprice.Answer:DTopic:HowShapesofDemandandSupplyCurvesMatter4)TheabovefigureshowsthesupplyanddemandcurvesforriceintheU.S.andJapan.Assumethereisnotradebe

5、tweenthetwocountries.Ifbadweathercausesthesupplycurvesineachcountrytoshiftleftwardbythesameamount,thenA)thepricewillincreaseinbothcountries.B)thepricewilldecreaseinbothcountries.C)thechangeinpricecannotbedetermined.D)Noneoftheabove.Answer:ATopic:HowShapesofDemandandSupplyCurvesMatter5)Theabovefigure

6、showsthesupplyanddemandcurvesforriceintheU.S.andinJapan.Assumethereisnotradebetweenthetwocountries.Ifbadweathercausesthesupplycurvesineachcountrytoshiftleftwardbythesameamount,thenA)thepricewillincreasethesameamountinbothcountries.B)thepricewilldecreasethesameamountinbothcountries.C)thepricewillincr

7、easemoreinJapanthanintheU.S.D)thepricewilldecreasemoreinJapanthanintheU.S.Answer:CTopic:HowShapesofDemandandSupplyCurvesMatter6)AverticaldemandcurveresultsinA)nochangeinquantitywhenthesupplycurveshift