微观经济学原理14章.ppt
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微观经济学原理14章.ppt

微观经济学原理14章.ppt

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FirmsinCompetitiveMarketsTheMeaningofCompetitionTheMeaningofCompetitionTheMeaningofCompetitionRevenueofaCompetitiveFirmRevenueofaCompetitiveFirmRevenueofaCompetitiveFirmRevenueofaCompetitiveFirmRevenueofaCompetitiveFirmRevenueofaCompetitiveFirmTotal,Average,andMarginalRevenueforaCompetitiveFirmProfitMaximizationfortheCompetitiveFirmProfitMaximization:ANumericalExampleP=AR=MRProfitMaximizationfortheCompetitiveFirmProfitMaximizationfortheCompetitiveFirmTheMarginal-CostCurveandtheFirm’sSupplyDecision...TheFirm’sShort-RunDecisiontoShutDownTheFirm’sShort-RunDecisiontoShutDownTheFirm’sShort-RunDecisiontoShutDownTheFirm’sShort-RunDecisiontoShutDown...TheFirm’sShort-RunDecisiontoShutDownTheFirm’sLong-RunDecisiontoExitorEnteraMarketTheFirm’sLong-RunDecisiontoExitorEnteraMarketTheCompetitiveFirm’sLong-RunSupplyCurve...TheCompetitiveFirm’sLong-RunSupplyCurveTheCompetitiveFirm’sLong-RunSupplyCurve...TheFirm’sShort-RunandLong-RunSupplyCurvesProfitLossSupplyinaCompetitiveMarketTheShortRun:MarketSupplywithaFixedNumberofFirmsTheShortRun:MarketSupplywithaFixedNumberofFirms...TheLongRun:MarketSupplywithEntryandExitTheLongRun:MarketSupplywithEntryandExit...TheLongRun:MarketSupplywithEntryandExitFirmsStayinBusinesswithZeroProfitIncreaseinDemandintheShortRunIncreaseinDemandintheShortRun...D2IncreaseinDemandintheShortRun...WhytheLong-RunSupplyCurveMightSlopeUpwardMarginalFirmSummarySummarySummarySummaryGraphicalReviewProfitMaximizationfortheCompetitiveFirm...TheMarginal-CostCurveandtheFirm’sSupplyDecision...TheFirm’sShort-RunDecisiontoShutDown...TheCompetitiveFirm’sLong-RunSupplyCurve...TheCompetitiveFirm’sLong-RunSupplyCurve...MeasuringProfitintheGraphfortheCompetitiveFirm...MeasuringProfitintheGraphfortheCompetitiveFirm...TheShortRun:MarketSupplywithaFixedNumberofFirms...TheLongRun:MarketSupplywithEntryandExit...IncreaseinDemandintheShortRun...IncreaseinDemandintheShortRun...IncreaseinDemandintheShortRun...