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ID:7053614
大小:683.60 KB
页数:148页
时间:2018-02-02
《曼昆宏观经济学第五版答案》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、CHAPTER2TheDataofMacroeconomicsQuestionsforReview1.GDPmeasuresboththetotalincomeofeveryoneintheeconomyandthetotalexpendi-tureontheeconomy’soutputofgoodsandservices.GDPcanmeasuretwothingsatoncebecausebotharereallythesamething:foraneconomyasawhole,inco
2、memustequalexpenditure.Asthecircularflowdiagraminthetextillustrates,thesearealter-native,equivalentwaysofmeasuringtheflowofdollarsintheeconomy.2.Theconsumerpriceindexmeasurestheoveralllevelofpricesintheeconomy.Ittellsusthepriceofafixedbasketofgoodsre
3、lativetothepriceofthesamebasketinthebaseyear.3.TheBureauofLaborStatisticsclassifieseachpersonintooneofthefollowingthreecat-egories:employed,unemployed,ornotinthelaborforce.Theunemploymentrate,whichisthepercentageofthelaborforcethatisunemployed,iscomp
4、utedasfollows:NumberofUnemployed×100UnemploymentRate=.LaborForceNotethatthelaborforceisthenumberofpeopleemployedplusthenumberofpeopleunemployed.4.Okun’slawreferstothenegativerelationshipthatexistsbetweenunemploymentandrealGDP.Employedworkershelpprodu
5、cegoodsandserviceswhereasunemployedworkersdonot.IncreasesintheunemploymentratearethereforeassociatedwithdecreasesinrealGDP.Okun’slawcanbesummarizedbytheequation:%∆RealGDP=3%–2×(∆UnemploymentRate).Thatis,ifunemploymentdoesnotchange,thegrowthrateofreal
6、GDPis3percent.Foreverypercentage-pointchangeinunemployment(forexample,afallfrom6percentto5percent,oranincreasefrom6percentto7percent),outputchangesby2percentintheoppositedirection.ProblemsandApplications1.Alargenumberofeconomicstatisticsarereleasedre
7、gularly.Theseincludethefollow-ing:GrossDomesticProduct—themarketvalueofallfinalgoodsandservicesproducedinayear.TheUnemploymentRate—thepercentageofthecivilianlaborforcewhodonothaveajob.CorporateProfits—theaccountingprofitsremainingaftertaxesofallmanuf
8、acturingcorporations.Itgivesanindicationofthegeneralfinancialhealthofthecorporatesec-tor.TheConsumerPriceIndex(CPI)—ameasureoftheaveragepricethatconsumerspayforthegoodstheybuy;changesintheCPIareameasureofinflation.TheTradeBalance—thedifferencebetween
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