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ID:56972275
大小:310.00 KB
页数:84页
时间:2020-07-25
《北大微观经济学课件(英文版)Ch24 Monopoly.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-FourMonopoly2021/7/31中级微观经济学PureMonopolyAmonopolizedmarkethasasingleseller.Themonopolist’sdemandcurveisthe(downwardsloping)marketdemandcurve.Sothemonopolistcanalterthemarketpricebyadjustingitsoutputlevel.2021/7/31中级微观经济学PureMonopolyOutputLevel,y$/outputu
2、nitp(y)Higheroutputycausesalowermarketprice,p(y).2021/7/31中级微观经济学WhyMonopolies?Whatcausesmonopolies?alegalfiat;e.g.USPostalService2021/7/31中级微观经济学WhyMonopolies?Whatcausesmonopolies?alegalfiat;e.g.USPostalServiceapatent;e.g.anewdrug2021/7/31中级微观经济学WhyMonopolies?Whatca
3、usesmonopolies?alegalfiat;e.g.USPostalServiceapatent;e.g.anewdrugsoleownershipofaresource;e.g.atollhighway2021/7/31中级微观经济学WhyMonopolies?Whatcausesmonopolies?alegalfiat;e.g.USPostalServiceapatent;e.g.anewdrugsoleownershipofaresource;e.g.atollhighwayformationofacartel;e
4、.g.OPEC2021/7/31中级微观经济学WhyMonopolies?Whatcausesmonopolies?alegalfiat;e.g.USPostalServiceapatent;e.g.anewdrugsoleownershipofaresource;e.g.atollhighwayformationofacartel;e.g.OPEClargeeconomiesofscale;e.g.localutilitycompanies.2021/7/31中级微观经济学PureMonopolySupposethatthemo
5、nopolistseekstomaximizeitseconomicprofit,Whatoutputlevely*maximizesprofit?2021/7/31中级微观经济学Profit-MaximizationAttheprofit-maximizingoutputlevely*so,fory=y*,2021/7/31中级微观经济学y$R(y)=p(y)yProfit-Maximization2021/7/31中级微观经济学$R(y)=p(y)yc(y)Profit-Maximizationy2021/7/31中级微观经济
6、学Profit-Maximization$R(y)=p(y)yc(y)yP(y)2021/7/31中级微观经济学Profit-Maximization$R(y)=p(y)yc(y)yP(y)y*2021/7/31中级微观经济学Profit-Maximization$R(y)=p(y)yc(y)yP(y)y*2021/7/31中级微观经济学Profit-Maximization$R(y)=p(y)yc(y)yP(y)y*2021/7/31中级微观经济学Profit-Maximization$R(y)=p(y)yc(y)yP(y)y*
7、Attheprofit-maximizingoutputleveltheslopesoftherevenueandtotalcostcurvesareequal;MR(y*)=MC(y*).2021/7/31中级微观经济学MarginalRevenueMarginalrevenueistherate-of-changeofrevenueastheoutputlevelyincreases;2021/7/31中级微观经济学MarginalRevenueMarginalrevenueistherate-of-changeofrev
8、enueastheoutputlevelyincreases;dp(y)/dyistheslopeofthemarketinversedemandfunctionsodp(y)/dy<0.Thereforefory>0.2021/7/31中级微观
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