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1、AnswerstoSelectedStudentGuideProblems**Notetoinstructors:Theanswerstomostofthedataquestionsweretakenfromthe2009EconomicReportofthePresident.Somedatafor2008weretakenfromtheBureauofEconomicAnalysisandDepartmentofLaborwebsites.ThedatamayberevisedinlaterpublicationsCHAPTER2TheDataofMacroeconomicsDataQue
2、stions1.a.Thefollowing2008data,inbillionsofdollars,wereobtainedfromtheBureauofEconomicAnalysisWebsiteathttp://www.bea.gov/.Thedatamayberevisedinfuturepublications.Table2–7(1)(2)GrossDomesticProduct$14,264.6EQUALSConsumption$10,057.9+Investment$1,993.5+GovernmentPurchasesofGoodsandServices$2,882.4+Ex
3、ports$1,859.4–Imports$2,528.6b.GDP=$10,057.9+$1,993.5+$2,882.4–$669.2=$14,264.6(billion)2.a.Table2–8(1)(2)(3)(4)(5)%Change%ChangeinCPIfromGDPinGDPDeflatorfromYearCPIPrecedingYearDeflatorPrecedingYear2007207.34119.823.82.22008215.30122.50b.ImportedoilisnotpartofU.S.GDP.Therefore,itisnotincludedinthec
4、alcula-tionoftheGDPdeflator,althoughitisincludedinthecalculationoftheCPIwhenitispurchasedbyconsumers.BecausetheUnitedStatesimports,ratherthanproduces,alargeportionoftheoilhouseholdsconsume,theoilpriceincreasehadagreatereffectontheCPIthanontheGDPdeflatorfrom2007to2008.203204AnswerstoSelectedStudentGu
5、ideProblems3.a.Table2–9(1)(2)(3)(4)(5)%ChangeTotalU.S.inRealGDPRealGDPPopulationRealGDPperCapitafromYear($inbillions)(inmillions)perCapitaPrecedingDecade19785,015222.6$22,53022.219886,743245.0$27,52219.319989,067276.1$32,84016.7200811,652304.1$38,316b.U.S.realGDPpercapitagrewthefastestfrom1978to1988
6、;itgrewtheslowestfrom1998to2008.4.a.andc.Table2–10(1)(2)(3)(4)(5)(6)(7)GDP%ChangeReal%ChangeNominal%ChangeYearDeflator(P)inPGDP(Y)inYGDP(Y)inPY($inbillions)($inbillions)2007119.8211,52413,8082.21.13.32008122.5011,65214,265b.3.3CHAPTER4MoneyandInflationProblems10.a.Thecostsofexpectedinflationarethesh
7、oeleathercostsofinflation,themenucostsofchangingprices,thecostofunindexedtaxes,thecostofgreatervariabilityinprices,andthecoststopeoplewhoreceiveincomesfixedinnominalterms(suchasprivatepensions)thatwer
