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HG · 2020年09月09日

问一道题:NO.PZ2018091706000020

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

老师,这道题的alpha去哪里了?为啥不考虑alpha,我看提问里的解答说是人均所以不考虑,怎么看出来的是人均?而且人均为啥就不需要alpha了?提问里还有一个提问,说是用另一个公式Y=T*K^a*L^(1-a),解析又说缺少alpha?这是咋回事呢?

3 个答案
已采纳答案

丹丹_品职答疑助手 · 2020年09月13日

同学你好,是(k/l)^a

这样是不是好理解一点?

丹丹_品职答疑助手 · 2020年09月10日

同学你好, capital deepening里面包含了alpha ,你可以看一下讲义文字部分的解释,capital deepending的定义就是说增加一单位capital deepending对于产出的影响。请知悉

丹丹_品职答疑助手 · 2020年09月09日

嗨,努力学习的PZer你好:


同学你好,这道题考的是Cobb-Douglas公式的变形

alpha包含在capital deepending里面了


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