《经济学概论》复习题

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1、……………………………………………装………………………………订…………………………线………………………………………………………此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写《经济学概论》复习题一、选择题1Completemarketfailurealwaysexistswhen（）Atherearenegativeexternalitiesinproduction.Bthefreemarketfailstoprovidesufficientmeritgoods

2、.Cthefreemarketunder-pricesdemeritgoods.Dthereisamissingmarketintheprovisionofpublicgoods.2Whichoneofthefollowingsituationswouldleadtoanincreaseinequilibriumprice?（）ADemandisperfectlyinelasticandlaborcostsriseBDemandisperfectlyelasticandlaborcostsrise

3、CSupplyisperfectlyelasticandthepriceofasubstitutegoodfallsDDemandisperfectlyinelasticandlaborcostsfall3.Thediagramaboveshowsthedemandandsupplycurvesforanormalgood.TheequilibriumpricecouldrisefromP1toP2if第13页共14页……………………………………………装………………………………订………………………

4、…线………………………………………………………此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写此处不能书写(a)consumers’incomesincreased(b)P2weresetasalegalmaximum(c)subsidiesontheproductincreased(d)thepriceofacomplementaryproductincreased(e)costsofproductionweresubstantiallyloweredAnswer:A4.

5、Aperfectlycompetitiveproducerofsteelrodsandsteelbeamsemploys100workerswithidenticalskills.Ifsteelrodsandsteelbeamssellforthesameprice,whichofthefollowingrulesshouldtheproduceralwaysfollowtousethe100workersefficiently?I.Allocateworkerssothattheaveragec

6、ostofproducingbeamsequalstheaveragecostofproducingrods.II.Allocateworkerssothatthemarginalproductoflaboristhesameinbothrodproductionandbeamproduction.III.Allocatehalftheworkerstorodproductionandhalftheworkerstobeamproduction.(a)Ionly(b)IIonly(c)IIIonl

7、y(d)IIandIIIonly(e)I,II,andIII5.Assumeaconsumerfindsthathistotalexpenditureoncompactdiscsstaysthesameafterthepriceofcompactdiscsdeclines.Whichofthefollowingistrueforthispricechange?(a)Compactdiscsareinferiorgoodstothisconsumer.(b)Theconsumer’sdemandfo

8、rcompactdiscsincreasedinresponsetothepricechange.(c)Theconsumer’sdemandforcompactdiscsisperfectlypriceelastic.(d)Theconsumer’sdemandforcompactdiscsisperfectlypriceinelastic.(e)Theconsumer’sdemandforcompactdiscsisunitpriceelastic.Answer:E6.Asit