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微观经济学的数学方法(1)VIP免费

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Mathematicalmethodsforeconomictheory:atutorialbyMartinJ.OsborneTableofcontentsIntroductionandinstructions1.Reviewofsomebasiclogic,matrixalgebra,andcalculuso1.1Logico1.2Matricesandsolutionsofsystemsofsimultaneousequationso1.3Intervalsandfunctions第1页共280页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第1页共280页o1.4Calculus:onevariableo1.5Calculus:manyvariableso1.6Graphicalrepresentationoffunctions2.Topicsinmultivariatecalculuso2.1Introductiono2.2Thechainruleo2.3Derivativesoffunctionsdefinedimplicitlyo2.4Differentialsandcomparativestaticso2.5Homogeneousfunctions3.Concavityandconvexityo3.1Concaveandconvexfunctionsofasinglevariableo3.2Quadraticforms3.2.1Definitions3.2.2Conditionsfordefiniteness3.2.3Conditionsforsemidefinitenesso3.3Concaveandconvexfunctionsofmanyvariableso3.4Quasiconcavityandquasiconvexity4.Optimizationo4.1Introductiono4.2Definitionso4.3Existenceofanoptimum5.Optimization:interioroptimao5.1Necessaryconditionsforaninterioroptimumo5.2Sufficientconditionsforalocaloptimumo5.3Conditionsunderwhichastationarypointisaglobaloptimum6.Optimization:equalityconstraintso6.1Twovariables,oneconstraint6.1.1Necessaryconditionsforanoptimum6.1.2InterpretationofLagrangemultiplier6.1.3Sufficientconditionsforalocaloptimum6.1.4Conditionsunderwhichastationarypointisaglobaloptimumo6.2nvariables,mconstraintso6.3Envelopetheorem7.Optimization:theKuhn-Tuckerconditionsforproblemswithinequalityconstraintso7.1TheKuhn-Tuckerconditionso7.2WhenaretheKuhn-Tuckerconditionsnecessary?o7.3WhenaretheKuhn-Tuckerconditionssufficient?o7.4Nonnegativityconstraintso7.5Summaryofconditionsunderwhichfirst-orderconditionsarenecessaryandsufficient8.Differentialequationso8.1Introduction第2页共280页第1页共280页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第2页共280页o8.2First-orderdifferentialequations:existenceofasolutiono8.3Separablefirst-orderdifferentialequationso8.4Linearfirst-orderdifferentialequationso8.5Phasediagramsforautonomousequationso8.6Second-orderdifferentialequationso8.7Systemsoffirst-orderlineardifferentialequations9.Differenceequationso9.1First-orderequationso9.2Second-orderequationsMathematicalmethodsforeconomictheory:atutorialbyMartinJ.Osborne第3页共280页第2页共280页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第3页共280页Copyright©1997-2003MartinJ.Osborne.Version:2003/12/28.THISTUTORIALUSESCHARACTERSFROMASYMBOLFONT.IfyouroperatingsystemisnotWindowsoryouthinkyoumayhavedeletedyoursymbolfont,pleasegiveyoursystemacharactercheckbeforeusingthetutorial.Ifyousystemdoesnotpassthetest,seethepageoftechnicalinformation.(Note,inparticular,thatifyourbrowserisNetscapeNavigatorversion6orlater,orMozilla,youneedtomakeasmallchangeinthebrowsersetuptoaccessthesymbolfont:here'show.)IntroductionThistutorialisahypertextversionofmylecturenotesforasecond-yearundergraduatecourse.Itcoversthebasicmathematicaltoolsusedineconomictheory.Knowledgeofelementarycalculusisassumed;someoftheprerequisitematerialisreviewedinthefirstsection.Themaintopicsaremultivariatecalculus,concavityandconvexity,optimizationtheory,differentialequations,anddifferenceequations.Theemphasisthroughoutisontechniquesratherthanabstracttheory.However,theconditionsunderwhicheachtechniqueisapplicablearestatedprecisely.Aguidingprincipleis"accessibleprecision".Severalbooksprov...

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微观经济学的数学方法(1)

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