Chap06微观经济学原理.ppt

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1、PerfectlyCompetitiveSupply:TheCostSideofTheMarketThinkingAboutSupply:TheImportanceofOpportunityCostExampleHowmuchtimeshouldHarryspendrecyclingsoftdrinkcontainers?2Chapter6:PerfectlyCompetitiveSupplyThinkingAboutSupply:TheImportanceofOpportunityCostHarryischoosingbetweenwashingdis

2、hesfor$6/hourandcollectingcontainersat2centseach.Opportunitycostofcollectingcansis$6/hour.3Chapter6:PerfectlyCompetitiveSupplyExampleSearchtime(hours/day)00160021,00031,30041,50051,600TotalnumberofcontainersfoundAdditionalnumberofcontainersfound6004003002001004Chapter6:PerfectlyC

3、ompetitiveSupplyThinkingAboutSupply:TheImportanceofOpportunityCostCostsandBenefits1hourcollectingcans=(600)(.02)=$12Benefit($12)>OpportunityCost($6)2ndhourbenefit($8)>OpportunityCost($6)3rdhourbenefit($6)=OpportunityCost($6)5Chapter6:PerfectlyCompetitiveSupplyThinkingAboutSupply:

4、TheImportanceofOpportunityCostQuestionWhatisthelowestredemptionpricethatwouldinduceHarrytorecycle1hour/day?Solution600containersx1cent=$6=opportunitycostofwashingdishes6Chapter6:PerfectlyCompetitiveSupplyThinkingAboutSupply:TheImportanceofOpportunityCostReservationPrice7Chapter6:

5、PerfectlyCompetitiveSupplyThinkingAboutSupply:TheImportanceofOpportunityCostReservationPrice1hourrecycling=p(600)=$6=1cent2hoursrecycling=p(400)=$6=1.5cents3hoursrecycling=p(300)=$6=2cents4hoursrecycling=p(200)=$6=3cents5hoursrecycling=p(100)=$6=6cents8Chapter6:PerfectlyCompetiti

6、veSupplyAnIndividualSupplyCurveforRecyclingServicesRecycledcans(100sofcans/day)Deposit(cents/can)0610131663211.515Harry’sSupplyCurve9Chapter6:PerfectlyCompetitiveSupplyTheMarketSupplyCurveforRecyclingServicesRecycledcans(100sofcans/day)Recycledcans(100sofcans/day)Deposit(cents/

7、can)++Deposit(cents/can)6101316632101.515Harry’sSupplyCurve6101316632101.515Barry’sSupplyCurve10Chapter6:PerfectlyCompetitiveSupplyRecycledcans(100sofcans/day)Deposit(cents/can)12202632632101.530==TheMarketSupplyCurveforRecyclingServicesMarketSupplyCurve11Chapter6:PerfectlyCompe

8、titiveSupplyTheMarketSupplyCurvewith1,0