课件平狄克《微观经济学》第七版.ppt
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课件平狄克《微观经济学》第七版.ppt
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Fernando&YvonnQuijanoPreparedby:
Preliminaries1CHAPTERCopyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.Chapter1:
Preliminaries2of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.CHAPTER1OUTLINE1.1TheThemesofMicroeconomics1.2WhatIsaMarket?
1.3RealversusNominalPrices1.4WhyStudyMicroeconomics?
Chapter1:
Preliminaries3of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.PreliminariesmicroeconomicsBranchofeconomicsthatdealswiththebehaviorofindividualeconomicunitsconsumers,firms,workers,andinvestorsaswellasthemarketsthattheseunitscomprise.macroeconomicsBranchofeconomicsthatdealswithaggregateeconomicvariables,suchasthelevelandgrowthrateofnationaloutput,interestrates,unemployment,andinflation.Chapter1:
Preliminaries4of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.THETHEMESOFMICROECONOMICS1.1Trade-OffsConsumersWorkersFirmsConsumershavelimitedincomes,whichcanbespentonawidevarietyofgoodsandservices,orsavedforthefuture.Workersalsofaceconstraintsandmaketrade-offs.First,peoplemustdecidewhetherandwhentoentertheworkforce.Second,workersfacetrade-offsintheirchoiceofemployment.Finally,workersmustsometimesdecidehowmanyhoursperweektheywishtowork,therebytradingofflaborforleisure.Firmsalsofacelimitsintermsofthekindsofproductsthattheycanproduce,andtheresourcesavailabletoproducethem.Chapter1:
Preliminaries5of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.1PricesandMarketsMicroeconomicsdescribeshowpricesaredetermined.Inacentrallyplannedeconomy,pricesaresetbythegovernment.Inamarketeconomy,pricesaredeterminedbytheinteractionsofconsumers,workers,andfirms.Theseinteractionsoccurinmarketscollectionsofbuyersandsellersthattogetherdeterminethepriceofagood.THETHEMESOFMICROECONOMICSChapter1:
Preliminaries6of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.1TheoriesandModelsIneconomics,explanationandpredictionarebasedontheories.Theoriesaredevelopedtoexplainobservedphenomenaintermsofasetofbasicrulesandassumptions.Amodelisamathematicalrepresentation,basedoneconomictheory,ofafirm,amarket,orsomeotherentity.PositiveversusNormativeAnalysispositiveanalysisAnalysisdescribingrelationshipsofcauseandeffect.normativeanalysisAnalysisexaminingquestionsofwhatoughttobe.THETHEMESOFMICROECONOMICSChapter1:
Preliminaries7of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.WHATISAMARKET?
1.2marketCollectionofbuyersandsellersthat,throughtheiractualorpotentialinteractions,determinethepriceofaproductorsetofproducts.marketdefinitionDeterminationofthebuyers,sellers,andrangeofproductsthatshouldbeincludedinaparticularmarket.arbitragePracticeofbuyingatalowpriceatonelocationandsellingatahigherpriceinanother.Chapter1:
Preliminaries8of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.2CompetitiveversusNoncompetitiveMarketsMarketPriceperfectlycompetitivemarketMarketwithmanybuyersandsellers,sothatnosinglebuyerorsellerhasasignificantimpactonprice.marketpricePriceprevailinginacompetitivemarket.WHATISAMARKET?
Chapter1:
Preliminaries9of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.2MarketDefinitionTheExtentofaMarketextentofamarketBoundariesofamarket,bothgeographicalandintermsofrangeofproductsproducedandsoldwithinit.Marketdefinitionisimportantfortworeasons:
Acompanymustunderstandwhoitsactualandpotentialcompetitorsareforthevariousproductsthatitsellsormightsellinthefuture.Marketdefinitioncanbeimportantforpublicpolicydecisions.WHATISAMARKET?
Chapter1:
Preliminaries10of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.2Marketsareusuallydefinedintermsoftherapeuticclassesofdrugs.Forexample,thereisamarketforantiulcerdrugsthatisveryclearlydefined.Sometimes,however,pharmaceuticalmarketboundariesaremoreambiguous,likepainkillers.Therearemanytypesofpainkillers,andsomeworkbetterthanothersforcertaintypesofpain.WHATISAMARKET?
Chapter1:
Preliminaries11of18Copyright2009PearsonEducation,Inc.PublishingasPrenticeHallMicroeconomicsPindyck/Rubinfeld,7e.1.2In1990,theArcher-Daniels-MidlandCompany(ADM)acquiredtheClintonCornProcessingCompany(CCP).TheU.S.DepartmentofJustice(DOJ)challengedthe
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