REDAMU · 2022年05月03日
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
本题解析中假设劳动力恒定，这个条件从哪里判断？
笛子_品职助教 · 2022年05月04日
嗨，努力学习的PZer你好：
Growth rate of labor productivity= Growth rate of TFP+ Growth rate of capital deepening
这题本身没有假定劳动力恒定，只不过，劳动生产率（Growth rate of labor productivity）这个公式，考查的是劳动力的人均产出，既然是人均，那么它和劳动力的总量就没有太大关系。
从公式看出啦，劳动生产率 = 技术进步率（Growth rate of TFP） + 资本增长率（Growth rate of capital deepening）
X国的劳动生产率2.6，技术进步率0.8，计算得出，资本增长率 = 2.6-0.8 = 1.8
Y和Z以此类推。
----------------------------------------------加油吧，让我们一起遇见更好的自己！
NO.PZ2018091706000020 问题如下 Economic ta of a country is showebelow:Accorng to the economic twhiof the three counties most likely rely on the capitepening? A.Country X. B.Country Y. C.Country Z. A is correct.考点Cobb-uglproction function 的变形公式解析先写出变形公式Growth rate of labor proctivity= Growth rate of TFP+ Growth rate of capitepening（假设劳动力恒定不变）capitepening%=△y/y-△T/T X=2.6-0.8=1.8Y=1.8-1=0.8Z=1-(-0.1) =1.1 在未知G的情况下，也可以计算capitepening吗？
NO.PZ2018091706000020 问题如下 Economic ta of a country is showebelow:Accorng to the economic twhiof the three counties most likely rely on the capitepening? A.Country X. B.Country Y. C.Country Z. A is correct.考点Cobb-uglproction function 的变形公式解析先写出变形公式Growth rate of labor proctivity= Growth rate of TFP+ Growth rate of capitepening（假设劳动力恒定不变）capitepening%=△y/y-△T/T X=2.6-0.8=1.8Y=1.8-1=0.8Z=1-(-0.1) =1.1 为什么用的是△y/y，而不是△Y/Y？△y/y是labor proctivity的growth rate而△Y/Y是PotentiG的，那为什么不用大写的这个Y呢？
NO.PZ2018091706000020 问题如下 Economic ta of a country is showebelow:Accorng to the economic twhiof the three counties most likely rely on the capitepening? A.Country X. B.Country Y. C.Country Z. A is correct.考点Cobb-uglproction function 的变形公式解析先写出变形公式Growth rate of labor proctivity= Growth rate of TFP+ Growth rate of capitepening（假设劳动力恒定不变）capitepening%=△y/y-△T/T X=2.6-0.8=1.8Y=1.8-1=0.8Z=1-(-0.1) =1.1 TFP是什么的简称
NO.PZ2018091706000020 问题如下 Economic ta of a country is showebelow:Accorng to the economic twhiof the three counties most likely rely on the capitepening? A.Country X. B.Country Y. C.Country Z. A is correct.考点Cobb-uglproction function 的变形公式解析先写出变形公式Growth rate of labor proctivity= Growth rate of TFP+ Growth rate of capitepening（假设劳动力恒定不变）capitepening%=△y/y-△T/T X=2.6-0.8=1.8Y=1.8-1=0.8Z=1-(-0.1) =1.1 题目问的是哪个国家更依赖capitepening来获得经济增长，解题算的是哪个国家capitepening增长率更高，这两者之间是正相关吗？为什么不能用capitepening再除以G growth rate来计算呢？
NO.PZ2018091706000020问题如下Economic ta of a country is showebelow:Accorng to the economic twhiof the three counties most likely rely on the capitepening?A.Country X.B.Country Y.C.Country Z. A is correct.考点Cobb-uglproction function 的变形公式解析先写出变形公式Growth rate of labor proctivity= Growth rate of TFP+ Growth rate of capitepening（假设劳动力恒定不变）capitepening%=△y/y-△T/T X=2.6-0.8=1.8Y=1.8-1=0.8Z=1-(-0.1) =1.1 L不是有值么，为什么能假设劳动力不变啊
