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1、西交《微观经济学》在线作业答案（Answerthemicroeconomicsonlineassignment）OnlineworkonMicroeconomicsTotalscore:100testtime:-testscores:100RadioexaminationAmultiple-choicequestionRadioexaminationquestions(35questions,70points)Score:701.,anenterpriseuseslaborasavariablefactor,ifthepriceoftheproductproduc
2、edbytheenterpriserises(theproductmarketofcompletecompetition):A.themarginalproductvalueofeachunitoflaborinthisenterpriseincreasesTheamountoflaborinputusedbyB.enterprisesisdecreasingC.themarginaloutputofeachunitoflaborinthisenterprisedecreasesD.productiondecline.Thecorrectanswer:AFullS
3、core:2points:22.inageneralequilibriummodel,thesupplyofproductsdependsonwagesandinterestrates,because().A.thepriceoftheseinputsaffectscostsTheincomeoftheB.familyisaffectedbychangesinwagesandinterestratesC.familiescanexchangetheirleisureorfuturespendinginexchangeforexistingproductsD.'sd
4、emandforcapitaldependsontherateofwagesThecorrectanswer:AFullScore:2points:23.wheneconomistsfocusonthewelfareofallmembersoftheeconomy,whichofthefollowingconceptsdotheyuse?().A.efficiencyB.productivityC.realwagesD.nominalwages.Thecorrectanswer:AFullScore:2points:24.,aworkerearns$80aweek
5、at$2anhour,making$3aweek,making$105aweekTheA.incomeeffectplaysamajorroleTheB.substitutioneffectplaysamajorroleNeithertheC.incomeeffectnorthesubstitutioneffecthadanyeffectD.isnotsure.Thecorrectanswer:AFullScore:2points:25.,monopolyreduceseconomicefficiency,because().A.whentheprofitisma
6、ximized,thetotalincomeexceedsthetotalcostB.whentheprofitismaximized,thepriceexceedsthemarginalcost.C.whenprofitsaremaximized,marginalrevenueexceedsmarginalcostD.whenprofitsaremaximized,marginalcostsexceedmarginalrevenueE.whenprofitismaximized,marginalrevenueequalsmarginalcost.Thecorre
7、ctanswer:BFullScore:2points:26.whenthepriceofconsumergoodschanges,thelinethatconnectstheconsumertoequilibriumiscalled().A.incomeconsumptioncurveB.demandcurveC.price-consumptioncurveD.EngelcurveThecorrectanswer:CFullScore:2points:27.ifanodifferencecurveishorizontal,thisindicatesthatthe
8、consu
