Principles+of+Economics+7th+Edition+Mankiw-Solution+Manual Chapter 33 20

《Principles+of+Economics+7th+Edition+Mankiw-Solution+Manual Chapter 33 20》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、Chapter20/AggregateDemandandAggregateSupply❖36533AGGREGATEDEMANDANDAGGREGATESUPPLYWHAT’SNEWINTHESEVENTHEDITION:ThereisanewIntheNewsboxon“WhatHaveWeLearned?”LEARNINGOBJECTIVES:Bytheendofthischapter,studentsshouldunderstand:Øthreekeyfactsaboutshort-runeconomicfluctuat

2、ions.Øhowtheeconomyintheshortrundiffersfromtheeconomyinthelongrun.Øhowtousethemodelofaggregatedemandandaggregatesupplytoexplaineconomicfluctuations.Øhowshiftsineitheraggregatedemandoraggregatesupplycancauseboomsandrecessions.CONTEXTANDPURPOSE:Tothispoint,ourstudyofm

3、acroeconomictheoryhasconcentratedonthebehavioroftheeconomyinthelongrun.Chapters20through22nowfocusonshort-runfluctuationsintheeconomyarounditslong-termtrend.Chapter20introducesaggregatedemandandaggregatesupplyandshowshowshiftsinthesecurvescancauserecessions.Chapter2

4、1focusesonhowpolicymakersusethetoolsofmonetaryandfiscalpolicytoinfluenceaggregatedemand.Chapter22addressestherelationshipbetweeninflationandunemployment.ThepurposeofChapter20istodevelopthemodeleconomistsusetoanalyzetheeconomy’sshort-runfluctuations—themodelofaggrega

5、tedemandandaggregatesupply.Studentswilllearnaboutsomeofthesourcesforshiftsintheaggregate-demandcurveandtheaggregate-supplycurveandhowtheseshiftscancauserecessions.Thischapteralsointroducesactionspolicymakersmightundertaketooffsetrecessions.©2012CengageLearning.AllRi

6、ghtsReserved.Maynotbescanned,copiedorduplicated,orpostedtoapubliclyaccessiblewebsite,inwholeorinpart.Chapter20/AggregateDemandandAggregateSupply❖365KEYPOINTS:·Allsocietiesexperienceshort-runeconomicfluctuationsaroundlong-runtrends.Thesefluctuationsareirregularandlar

7、gelyunpredictable.Whenrecessionsdooccur,realGDPandothermeasuresofincome,spending,andproductionfall,andunemploymentrises.·Classicaleconomictheoryisbasedontheassumptionthatnominalvariablessuchasthemoneysupplyandthepriceleveldonotinfluencerealvariablessuchasoutputandem

8、ployment.Mosteconomistsbelievethatthisassumptionisaccurateinthelongrunbutnotintheshortrun.Economistsanalyzeshort-runeconomicfluctuationsus