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1、17.宏观第十七章思考题答案详解Theillusiontheory:changesinpricelevelwi11causeenterprisestomakemistakesintheshorttermandmakebaddecisions・Increasesupplywhenpricesrise;Conversely,reducesupply.Theabovethreetheoriesshowthattheaggregatesupplyofshort-termaggregatesupplyismovinginthesamedirectionasthepricelevel,whichi
2、sthattheshorttermaggregatesupplycurveistiltedtotheupperright・Thelong-runaggregatesupplycurveisaverticalline・Thisisbecause,inthelongterm,moneywageshaveplentyoftimeforreactiononprices,andwagesandpriceshaveflexiblescalability,makesthelevelofwagesintheLabourmarketequilibrium.Sinceinthelabormarket,in
3、theflexibleadjustmentofwages,fullemploymentcanalwaysbemaintained,therefore,theeconomicoutputisalwaysunderfullemploymentandlaboroutputthatiscorrespondingtothepotentialoutput・Evenifpricesrise,productionwillnotrise・Sothelong-runaggregatesupplycurveisaperpendicularlinethatisindependentofthepriceleve
4、1.TheIong-termaggregatesupplycurveshowsthat,inthelongrun,theeconomystabilizesattheunderlyinglevelofoutput,whenpricechangesdon，taffecttotalsupply.Answer:expansionaryfiscalpolicymakestheaggregatedemandcurveshifttotheright・Expansionarymonetarypolicyshiftstheaggregatedemandcurvetotheright・IntheAD一AS
5、model,theaggregatedemandcurvemovestotheright,causingpricestoriseandnationalincometorise.Answer:intheclassicalaggregatedemand-aggregatesupplymodel,theaggregatesupplycurveisaverticallinelocatedatfullemploymentoutputleve1.Therefore,whentheaggregatedemandcurvemoves,itcanonlyleadtochangesinthepricele
6、velandnotaffecttheemploymentvolumeandnationalincome・DictionintheKeynesianaggregatedemand-supplymodel,theaggregatesupplycurvebecausethenominalwageshasrigidtilttotheupperright,thisshowsthatthechangeofemploymentandincomelevelmainlydependsonthelevelofaggregatedemand.Whenaggregatedemandisexpanding,th
7、edeclineinrealwagesincreasesthenumberofjobs,therebyincreasingoutputlevels・A:expansionaryfiscalpolicyisapolicyactionofthestatetostimulateandincreaseaggregatedemandthroughfiscaldistributionactivities・It'salsocalledaninflationa
