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陳泰傑 · 2020年08月04日

问一道题:NO.PZ2018091706000020 [ CFA II ]

问题如下:

Economic data of a country is showed below:

According to the economic data, which of the three counties most likely rely on the capital deepening?

选项:

A.

Country X.

B.

Country Y.

C.

Country Z.

解释:

A is correct.

考点Cobb-Douglas production function 的变形公式

解析先写出变形公式

Growth rate of labor productivity= Growth rate of TFP+ Growth rate of capital deepening假设劳动力恒定不变

capital deepening%=y/y-T/T

X=2.6-0.8=1.8

Y=1.8-1=0.8

Z=1-(-0.1) =1.1

請問一下老師 這一題的alpha到哪裡去了?考試的時候可以默認為1嗎
2 个答案

源_品职助教 · 2020年11月02日

Y/L=T(K/L)^α

即y=T(k)^α

由此可见,人均产出和T与k有关,α只是附着在k上的一个系数,表明k的作用大小而已。

源_品职助教 · 2020年08月05日

嗨,努力学习的PZer你好:


这题用到的公式没有阿尔法。因为题目问的是人均的概念。

人均产出下,不涉及阿尔法的参数。


-------------------------------
努力的时光都是限量版,加油!


月乔DD · 2020年11月01日

请问为什么人均不涉及阿尔法?老师上课在推算g的时候,写的公式是有阿尔法的。。不然g的等式也不会有阿尔法呀?

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