快考试了,想求助大家一题经济题,我们用的书是曼昆的宏经Gregory Mankiw,2003,Macroeconomics,5^th edition

考试中有个大题,老师给了一个方向,就是关于National Income Distribution的,用自己的话写出 How is national income distributed to the factors of production? Why the economic profit is 0?

我整理了大概的步骤,小女子不才,不知哪位高人帮俺整理成short essay, Many thanks

1, assume a competitive firm, which takes market price as given

2, maximize profit PY-WL-RK

3, how profit depends on factors of production

4, real factor price MPL=W/P MPK=R/P

5, economic profit= Y-(MPL*L)-(MPK*K)

distribution of national income Y=(MPL*L)+(MPK*K)+Economic Profit

6, Euler’s theorem

economic profit is 0

基本步骤如上,最后要说明Why the economic profit is 0?所有的income都分配完毕,没有剩余