问题如下图：
选项：
A. 
B. 
C. 
解释： 可以理解为这个是对第一个变形公式后再两边取对数，再求导吗？
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 如题，我没找到对应的变形公式
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 表格最后一列的growth rate of output指的是课件里的什么呢
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 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
