曼昆 宏观经济学 第九版 答案 英文版 solution manual for macroeconomics 9th edition by mankiw

nfunction,thedecreaseinthecapitalstockwilldecreasethemarginalproductoflaborandwilldecreasetherealwage.Withlesscapital,eslessproductive.c.d.Ifatechnologicaladvanceimprovestheproductionfunction,thisislikelytoincreasethemarginalproductsofbothcapitalandlabor.Hence,therealwageandtherealrentalpricebothincrease.Highinflationthatdoublesthenominalwageandthepricelevelwillhavenoimpactontherealwage.Similarly,highinflationthatdoublesthenominalrentalpriceofcapitalandthepricelevelwillhavenoimpactontherealrentalpriceofcapital.2.a.b.Tofindtheamountofoutputproduced,substitutethegivenvaluesforlaborandlandintotheproductionfunction:Y=1000.50.5100=100.Accordingtothetext,theformulasforthemarginalproductoflaborandthemarginalproductofcapital(land)are:MPL=(1–α)AKL.α–αL.MPK=αAKα–11–αChapter3—e:esFromandWhereItGoes10