生產技術與利潤最大化-資料下載頁
2025-05-12 15:02本頁面
【正文】 利潤最大化 生產要素的邊際產品價值 (the marginal revenue product of input 1)應該等于它的價格 ? ?*1 1 2 1,p M P x x w?x1 ￥ pMP1 w1 x*1 44 44 幾何法 等利潤線 (IsoProfit Lines) 1 1 2 2p y w x w x? ? ? ?2121wwy x xp p p?? ? ?slope vertical intercept 45 45 IsoProfit Lines ???????????????y x1 S lo p es wp? ? 146 46 ShortRun ProfitMaximization S lo p es wp? ? 1x1*y*x1 y ???????????????? ?12,y f x x?MP w p p MP w1 1 1 1? ? ? ?47 47 ShortRun ProfitMaximization。 A CobbDouglas Example 1 / 3 1 / 312y x x? 2 / 3 1 / 31 1 2113yM P x xx?????* 2 / 3 1 / 31 1 1 2 1()3pM R P p M P x x w?? ? ? ?3 / 2* 1 / 21213pxxw??? ????1 / 2* * 1 / 3 1 / 3 1 / 21 2 21()3py x x xw???? ????48 48 比較靜態(tài)學 產品價格 p變動 x1 y ????? ?12,y f x x?S lo p es wp? ? 1?????低價格 高價格 49 49 比較靜態(tài)學 投入價格 w1變動 x1 y ????? ?12,y f x x?S lo p es wp? ? 1?????高價格 低價格 50 50 Comparative Statics of ShortRun ProfitMaximization An increase in p, the price of the firm’s output, causes an increase in the firm’s output level (the firm’s supply curve slopes upward), and an increase in the level of the firm’s variable input (the firm’s demand curve for its variable input shifts outward). 51 51 Comparative Statics of ShortRun ProfitMaximization An increase in w1, the price of the firm’s variable input, causes a decrease in the firm’s output level (the firm’s supply curve shifts inward), and a decrease in the level of the firm’s variable input (the firm’s demand curve for its variable input slopes downward). 52 52 所有要素的使用量都可以自由的變動 ? ?121 2 1 1 2 2,m a x ,xx p f x x w x w x??? ?**1 1 2 1,p M P x x w?? ?**2 1 2 2,p M P x x w?1 1 1 2* ( , )x x w w?2 2 1 2* ( , )x x w w?要素需求曲線 53 53 反要素需求曲線 x1 ￥ w’1 x’1 pMP1 w”1 x”1 w1 11p M P w?
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