微观经济学（ngregorymankiw）教学课件quiz01

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1、Chapter1TenPrinciplesofEconomics1.Choicesmustbemadeintheuseofresources()a.becausetheyareinfinitesupply.b.becausetheyareinfinitedemand・c.onlyiftheresourcesarenonrenewable.d・becausetheyareininfinitesupply.2.Socialsecurityprogramsareaimedatmakingthedistribut

2、ionofresourcesinaneconomymore()a.efficient.c.equitable.b.inefficient.d.inequitable.3.Theopportunitycostofbuildinganadditionalparkinglotatyourschoolis()a.thecostofconcrete,labor,etc.usedtobuildthelot.b・thevalueofthepropertyandresourcesusedattheirnextbestal

3、ternativeuse.c.thevalueofthepropertyandresourcesusedatalloftheiralternativeuses.d.infinite,andsowecannotestimateit・4.Supposeyouareconsideringgoingtothemovies,andyouplacea$12valueonyouranticipatedenjoymentofthemovie.“Theticketpriceis$6andyouwouldbegivingup

4、twohoursofwork,whereyouearn$5perhour.Youwouldgoto()a.work;theopportunitycostofthemoviesexceedstheexpectedbenefit.b.themovies;yourincentiveisthe$6excessexpectedbenefit.c.themovies;yourenjoymentwillexceedthelostwagesby$2.d・themovies;thebenefitof$18exceedsth

5、elostwages.5.MetroNorthRailwayistryingtodecidewhetherornottorunanadditionaltrainintoNewYorkCityfromNewHaven,Connecticutat8:15a.m.Thetotalcostofrunningtrainsbetween8:00a.m.and9:00a.m.is$45,000andtheexpectedrevenuesonanygivendayare$100,000duringthistimeperi

6、od.Thecostofrunningtheadditionaltrainis$4,000anditisexpectedthatrevenueswillriseto$103,500.MetroNorthshould()a.runthetrainbecausethetotalrevenuesaregreaterthanthetotalcosts.b.runthetrainbecausethefimfsrevenueswillrise.c.notrunthetrainbecausethetotalcostsa

7、realreadytoohigh.d.notrunthetrainbecausethemarginalcostof$4000isgreaterthanthemarginalrevenueof$3,500・1.Anation，sstandardoflivingcanbeincreasedby()a.improvementsintechnologyandinternationaltrade.b・improvementsintechnologybutnotinternationaltrade.c.interna

8、tionaltradebutnotimprovementsintechnology.d・neitherinternationaltradenorimprovementsintechnology.2.Inamarketeconomy,theeconomicwell-beingofsocietyistheresponsibilityof()a.centralplanners.b.centralbankers.c.governmen