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时间:2019-11-17
《中级宏观经济学作业1答案-上海交通大学.docx》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、1.SupposeyouareastaffeconomistatBureauofLaborStatistics.Yourtaskistomakenecessarycalculationsaboutnationaloutputandpricelevelbasedontheinformationbelow.LenovolaptopsImportedFrenchWinesDomesticallyproducedsubmarine2010price¥10¥9¥202011price¥12¥20¥252012priceY15¥35¥3()LenovolaptopsImportedFrenchWi
2、nesDomesticallyproducedsubmarine2010quantity10020502011quantity12035552012quantity1354070a.WhatistheNominalandRealGDPfor2010,2011,and2012,with2010asbaseyear.(showyourworkindetail)NominalGDP:2010:10X100+20X50=20002011:12X120+25X55=28152012:15X135+30X70=4125RealGDP2010:10X100+20X50=20002011:10X120
3、+20X55=23002012:10X135+20X70=2750b.WhatistheGDPdeflatorfor2010,2011,and2012?2010GDPdeflator:2000/2000*100=1002011GDPdeflator:2815/2300*100=122.42012GDPdeflator:4125/2750*100=150a.WhatisthepercentagechangeofGDPdeflatorfrom2010to2011,andfrom2011to2012?PercentagechangeofGDPdeflatorfrom2010to2011:22
4、.4%PercentagechangeofGDPdeflatorfrom2011to2012:22.5%b.WhatistheConsumerPriceIndexfor2010,2011,and2012,with2010asbaseyear?(showyourworkindetail)2010:10*100+9*20=1180;1180/1180*100=1002011:12*100+20*20=1600;1600/1180*100=135.62012:15*100+35*20=2200;2200/1180*100=186.4c.Whatistherateofinflationfor2
5、011and2012?2010-2011:35.6%2011-2012:(186.4-135.6)/135.6=37.5%1.Supposethegovernmentincreasestaxesandgovernmentpurchasesbyequalamounts.Whathappenstotheinterestrateandinvestmentinresponsetothisbalancedbudgetchange?Doesyouranswerdependonthemarginalpropensitytoconsume?At=AgS=[Y-T-C(Y-T)]+(T-G)As=[-A
6、t-mpc(-At)]+(ZSt・Ag)(Ac=mpc*A(y-t)=mpc(-At))=[-At+mpc*At]+o=(mpc-i)*AtoTheaboveexpressiontellsusthattheimpactonsavingofanequalincreaseinTandGdependsonthesizeofthemarginalpropensitytoconsume.TheclosertheMPCisto1,thesmalleristhefallinsaving.Forexample,iftheMPCequals1,thenthefallinconsumptionequals
7、theriseingovernmentpurchases,sonationalsaving[Y一C(Y-T)一G]isunchanged.TheclosertheMPCisto0(andthereforethelargeristheamountsavedratherthanspentforaone-dollarchangeindisposableincome),thegreateristheimpactonsaving.Becauseweass
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