[討論] neoclassicl real wage & rental pric of captial

看板Economics作者 (囧)時間16年前 (2008/06/22 04:43), 編輯推噓5(5推 0噓 19→)
留言24則, 5人參與, 最新討論串1/1
原題如下 Based on the neoclassical theory of distribution , the real wage will fall and real rental price of capital will rise if immigrant labor force raises significantly. ANS : yes 有解答 但不懂的地方是 real wage = MPn= f(k*)-k*f'(k*) rental price of capital = MPk = f'(k*) MPk 知道如何求出 MPn 呢?? 懇請高手回答 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.166.206.117
推
06/22 16:01, , 1F
K不變 N↑ k↓
06/22 16:01, 1F
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06/22 16:02, , 2F
dMPn/dk = f'(k) - f'(k) - f''(k)
06/22 16:02, 2F
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06/22 16:03, , 3F
= - f''(k) > 0
06/22 16:03, 3F
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06/22 16:03, , 4F
k↓使MPn↑
06/22 16:03, 4F
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06/22 17:19, , 5F
我不懂的是MPn 為何 = f(k*)-k*f'(k*)
06/22 17:19, 5F
推
06/22 17:29, , 6F
解答是用成長理論來解釋..翻一下後面幾章吧
06/22 17:29, 6F
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06/22 17:31, , 7F
樓樓上 這在romer ch2 用力給他微下去答案
06/22 17:31, 7F
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06/22 17:32, , 8F
會出來 主要是F裡面那個F/L會衍生一堆東西
06/22 17:32, 8F
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06/22 17:33, , 9F
我手邊沒書但我確定是這樣算沒錯
06/22 17:33, 9F
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06/22 17:35, , 10F
樓上的 romer CH2 是??
06/22 17:35, 10F
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06/22 17:41, , 11F
翻一下總經"內生成長"的章節看一下你就懂了
06/22 17:41, 11F
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06/22 17:43, , 12F
圖形上MPK是切線斜率.MPN剛好是那中間的差
06/22 17:43, 12F
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06/22 19:24, , 13F
MPN=每人平均消費嗎??
06/22 19:24, 13F
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06/22 20:06, , 14F
從y=MPk*K+MPn*N 來推 因該還要在除N才對
06/22 20:06, 14F
推
06/22 21:29, , 15F
MPn是marginal product of labor
06/22 21:29, 15F
推
06/22 21:31, , 16F
MPn = dN*f(k)/dN
06/22 21:31, 16F
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06/22 21:32, , 17F
= f(k) + N*df(k)/dN
06/22 21:32, 17F
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06/22 21:33, , 18F
= f(k) + N*df(k)/dk*dk/dN
06/22 21:33, 18F
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06/22 21:35, , 19F
= f(k) + N*f'(k)*d(K/N)/dN
06/22 21:35, 19F
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06/22 21:36, , 20F
= f(k) + N*F'(k)*(-K/N^2)
06/22 21:36, 20F
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06/22 21:36, , 21F
f才對
06/22 21:36, 21F
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06/22 21:37, , 22F
= f(k) - f'(k)*k
06/22 21:37, 22F
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06/23 01:59, , 23F
感謝....
06/23 01:59, 23F
推
06/23 06:49, , 24F
daniel大你可以回文 XD
06/23 06:49, 24F
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文章代碼(AID): #18NMW60O (Economics)