中微课件范里安版 Micro Ch23.ppt

中微课件范里安版 Micro Ch23.ppt

ID:51630133

大小:237.50 KB

页数:48页

时间:2020-03-26

中微课件范里安版 Micro Ch23.ppt_第1页
中微课件范里安版 Micro Ch23.ppt_第2页
中微课件范里安版 Micro Ch23.ppt_第3页
中微课件范里安版 Micro Ch23.ppt_第4页
中微课件范里安版 Micro Ch23.ppt_第5页
资源描述:

《中微课件范里安版 Micro Ch23.ppt》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、ChapterTwenty-ThreeIndustrySupplyWhatisthepurposeofthischapter?Itistoderivethemarketsupplycurvefromindividualfirms’supplycurve.Short-RunSupplyInashort-runthenumberoffirmsintheindustryis,temporarily,fixed.LetSi(p)befirmi’ssupplyfunction.Theindustry’sshort-runsupplyfunction

2、isSupplyFromACompetitiveIndustrypS1(p)pS2(p)pS(p)=S1(p)+S2(p)p”p”S1(p”)S1(p”)+S2(p”)S2(p”)Firm1’sSupplyFirm2’sSupplyIndustry’sSupplyShort-RunIndustryEquilibriumInashort-run,neitherentrynorexitcanoccur.Consequently,afirm’sprofitcanbepositive,zero,ornegative.Short-RunIndust

3、ryEquilibriumMarketdemandShort-runindustry supplypseYseYShort-runequilibriumpriceclearsthe marketandistakenasgivenbyeachfirm.Short-RunIndustryEquilibriumy1y2y3ACsACsACsMCsMCsMCsy1*y2*y3*pseFirm1Firm2Firm3Short-RunIndustryEquilibriumy1y2y3ACsACsACsMCsMCsMCsy1*y2*y3*pseFirm

4、1Firm2Firm3Firm1wishes toremainin theindustry.Firm2wishes toexitfrom theindustry.Firm3is indifferent.P1>0P2<0P3=0Long-RunIndustrySupplyInthelong-runentryandexistarepossible.Positiveeconomicprofitinducesentry.Entryincreasesindustrysupply,causingpsetofall.Whendoesentrycease

5、?Long-RunIndustrySupplyS2(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYSupposetheindustryinitiallycontains onlytwofirms.Mkt. SupplyLong-RunIndustrySupplyS2(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp2p2y2*Thenthemarket-clearingpriceisp2. Eachfirmproducesy2*unit

6、sofoutput.Long-RunIndustrySupplyS2(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp2p2y2*P>0Eachfirmmakesapositiveeconomic profit,inducingentrybyanotherfirm.Long-RunIndustrySupplyS2(p)S3(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp2p2Marketsupplyshiftsoutwards. Ma

7、rketpricefalls.y2*Long-RunIndustrySupplyS2(p)S3(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp3Eachfirmproducesless.y3*p3Long-RunIndustrySupplyS2(p)S3(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp3Eachfirmproducesless. Eachfirm’seconomicprofitisreduced.y3*p3P>0Lo

8、ng-RunIndustrySupplyS3(p)Mkt.DemandAC(y)MC(y)yA“Typical”FirmTheMarketppYp3Eachfirm’seconomicprof

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。