宏观经济习题

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1、判断GDPIdentifytheimmediateeffectofeachofthefollowingcircumstancesonU.S.GDPanditscomponents.a.JamesreceivesaSocialSecuritycheck.b.JohnbuysanItaliansportscar.c.Henrybuysdomesticallyproducedtoolsforhisconstructioncompany.ANSWER:a.Sincethisisatransferpayment（转移支付）,thereisnochangetoGD

2、Portoanyofitscomponents.b.ConsumptionandimportswillriseandcanceleachotheroutsothatthereisnochangeinU.S.GDP.c.ThisincreasestheinvestmentcomponentofGDPandsoincreasesGDP（计算CPI）1.Inasimpleeconomy,peopleconsumeonly2goods,foodandclothing.ThemarketbasketofgoodsusedtocomputetheCPIhas50u

3、nitsoffoodand10unitsofclothing.foodclothing2002price$4$102003price$6$20a.Whatarethepercentageincreasesinthepriceoffoodandinthepriceofclothing?b.WhatisthepercentageincreaseintheCPI?c.Dothesepricechangesaffectallconsumerstothesameextent?Explain.ANSWER:a.Thepriceoffoodincreasedby50

4、percent.Thepriceofclothingincreasedby100percent.b.In2002themarketbasketcost$300in2003itcost$500.ThepercentageincreaseintheCPIis200/300=66.7percentc.Sincethepriceofclothingincreasedrelativelymorethandidthepriceoffood,peoplewhopurchasealotofclothingandlittlefoodbecameworseoffrelat

5、ivetopeoplewhopurchasealotoffoodandlittleclothing.（CPI&GDPdeflator）WhydoestheGDPdeflatorgiveadifferentrateofinflationthandoestheCPI?ANSWER:TheGDPdeflatorandtheCPIdifferintwoimportantways.TheGDPdeflatorusesasabasketofgoodsallfinalgoodsandservicesproducedinthedomesticeconomy,while

6、theCPIbasketincludesgoodsandservicespurchasedbytypicalconsumers.Therefore,changesinthepriceofimportedgoodsaffecttheCPI,butnottheGDPdeflator.Also,changesinthepriceofdomesticallyproducedcapitalgoodsaffecttheGDPdeflator,butnottheCPI.Changesinthepriceofdomesticallyproducedconsumergo

7、odsarelikelytoaffecttheCPImorethantheGDPdeflatorbecauseitislikelythatthosegoodsmakeupalargerpartofconsumerbudgetsthanofGDP.Computehowmucheachofthefollowingisworthintermsoftoday’sdollarsusing177asthepriceindexfortoday.a.In1926theCPIwas17.7andthepriceofamovieticketwas$0.25b.In1932

8、theCPIwas13.1andacookearned$15.00aweekc.In1943t