solow模型 - 經濟

By Victoria
at 2019-12-02T19:52
at 2019-12-02T19:52
Table of Contents
在沒有技術進步的假定下
(產出Y,勞動N,資本K,y=Y/N每人產出,k=K/N每人資本 )
令 y=f(k)
請問是怎麼得到 fk(k)=dY/dK [fk(k)為資本邊際生產力] 的?
書上證明:
dY/dK
= d[Nf(k)]/dK
= N*fk(k)*(dk/dK)
= N*fk(k)* 1/N
= fk(k)
其中第三、四行, dk/dK = 1/N
在下微積分不太熟,這邊看不懂,求各位大神解惑,謝謝。
--
(產出Y,勞動N,資本K,y=Y/N每人產出,k=K/N每人資本 )
令 y=f(k)
請問是怎麼得到 fk(k)=dY/dK [fk(k)為資本邊際生產力] 的?
書上證明:
dY/dK
= d[Nf(k)]/dK
= N*fk(k)*(dk/dK)
= N*fk(k)* 1/N
= fk(k)
其中第三、四行, dk/dK = 1/N
在下微積分不太熟,這邊看不懂,求各位大神解惑,謝謝。
--
Tags:
經濟
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