问题如下图：
选项：
A. 
B. 
C. 
解释：讲义里有提过吗？在如果有，在哪里
NO.PZ2016010802000115 问题如下 economic forecasting firm hestimatethe following equation from historicta baseon the neoclassicgrowth mol:Potentioutput growth = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capitalThe coefficient on the growth rate of labor (0.72) in this equation is best interpreteas: A.the labor forparticipation rate. B.the marginproctivity of labor. C.the share of income earnelabor. is correct.In the stanrSolow growth accounting equation, the coefficient on eafactor’s growth rate is its share of income.考点柯布道格拉斯函数的变形表达式解析本题直接考察1-α的定义，它代表劳动力对于总收入（总产出）的贡献占比。 啥意思呢0.72
NO.PZ2016010802000115 问题如下 economic forecasting firm hestimatethe following equation from historicta baseon the neoclassicgrowth mol:Potentioutput growth = 1.5 + 0.72 × Growth of labor + 0.28 × Growth of capitalThe coefficient on the growth rate of labor (0.72) in this equation is best interpreteas: A.the labor forparticipation rate. B.the marginproctivity of labor. C.the share of income earnelabor. is correct.In the stanrSolow growth accounting equation, the coefficient on eafactor’s growth rate is its share of income.考点柯布道格拉斯函数的变形表达式解析本题直接考察1-α的定义，它代表劳动力对于总收入（总产出）的贡献占比。 谢谢老师，视频里一带而过。。原理不太懂
柯布道格拉斯函数我知道，不过b也是求偏导就能得出，不就是边际的含义吗？？为什么不对呢？
没有明白B和C之间含义的区别，B涉及到的知识点是什么？
