中级微观学CH02.ppt
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中级微观学CH02.ppt

中级微观学CH02.ppt

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1PREFERENCESANDUTILITY3MotivationPreferencePreferencePreferenceCompleteness(完备性):Foranytwobundlesxandyitisalwayspossibletomakethestatementthateitherxyoryx.Reflexivity(反身性):Anybundlexisalwaysatleastaspreferredasitself;i.e.xx.Transitivity(传递性):Ifxisatleastaspreferredasy,andyisatleastaspreferredasz,thenxisatleastaspreferredasz;i.e.xyandyzxz.11UtilityUtilityUtilityUtility16Game18Well-BehavedPreferences良好性状偏好20Well-BehavedPreferencesWell-BehavedPreferencesPreferencesExhibitingSatiationIndifferenceCurvesExhibitingSatiationIndifferenceCurvesforDiscreteCommoditiesIndifferenceCurvesforDiscreteCommoditiesIndifferenceCurvesWithaDiscreteGoodExerciseExercise363738MarginalUtilityMarginalUtility414243444546Marg.Rates-of-SubstitutionforQuasi-linearUtilityFunctionsMarg.Rates-of-SubstitutionforQuasi-linearUtilityFunctionsMonotonicTransformations&MarginalRates-of-SubstitutionMonotonicTransformations&MarginalRates-of-SubstitutionMonotonicTransformations&MarginalRates-of-Substitution5253545556575859Review