NO.PZ2019093001000017
问题如下：
A return distribution of skilled managers that is highly distinct from the return distribution of unskilled managers, most likely implies a:
选项：
A.highly efficient market.
low opportunity cost of not hiring a skilled manager.
high opportunity cost of not hiring a skilled manager.
解释：
C is correct.
When the two distributions are highly distinct, the unskilled managers are expected to significantly underperform the skilled managers, implying a high opportunity cost of not hiring the skilled managers. Efficient markets are likely to exhibit smaller differences of returns between skilled and unskilled managers.
老师，根据框架图，老师的意思是2类错误机会成本更高，2类错误是指雇佣了unskilled manager，那这道题解题思路怎么理解，这个地方很容易变不过来
