ChapterSixPropertiesofDemandFunctionsStructureOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesx1*(p1’)x1*(p1’)x1*(p1’)x1*(p1’)x1*(p1’’’)x1*(p1’’’)x1*(p1’’’)Own-PriceChangesOwn-PriceChangesOwn-PriceChangesx1*(p1’’’)x1*(p1’’’)Own-PriceChangesOwn-PriceChangesFixedp2andy.p1p1p1p1Own-PriceChangesOwn-PriceChangesFixedp2andy.Fixedp2andy.Fixedp2andy.Fixedp2andy.Fixedp2andy.Fixedp2andy.Fixedp2andy.Fixedp2andy.Own-PriceChangesOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesOwn-PriceChangesMeaningoftheInverseDemandFunctionIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesandCobb-DouglasPreferencesIncomeChangesandCobb-DouglasPreferencesIncomeChangesandCobb-DouglasPreferencesIncomeChangesandPerfectly-ComplementaryPreferencesIncomeChangesandPerfectly-ComplementaryPreferencesFixedp1andp2.IncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesIncomeChangesandPerfectly-SubstitutablePreferencesIncomeChangesandPerfectly-SubstitutablePreferencesIncomeChangesandPerfectly-SubstitutablePreferencesIncomeChangesHomotheticity（位似偏好）IncomeEffects--ANonhomotheticExampleQuasi-linearIndifferenceCurvesIncomeChanges;QuasilinearUtilityIncomeChanges;QuasilinearUtilityIncomeChanges;QuasilinearUtilityIncomeChanges;QuasilinearUtilityIncomeEffectsIncomeEffectsIncomeChanges;Goods1&2NormalIncomeChanges;Good2IsNormal,Good1BecomesIncomeInferiorIncomeChanges;Good2IsNormal,Good1BecomesIncomeInferiorIncomeChanges;Good2IsNormal,Good1BecomesIncomeInferiorOrdinaryGoods（一般商品）OrdinaryGoodsOrdinaryGoodsGiffenGoods（吉芬商品）OrdinaryGoodsOrdinaryGoodsCross-PriceEffectsCross-PriceEffectsCross-PriceEffectsCross-PriceEffectsCross-PriceEffects