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
比如 Y是产出,是potential GDP,跟题目里面那个实际的产出怎么区分?
y 是产出增长率, 还是labor productivity(跟L变化率有时候就迷糊了)
类似这些,可能散在讲义很多地方或者题目出现过的表述?