NO.PZ2015121801000091
问题如下：
With respect to return-generating models, which of the following statements is most accurate? Return-generating models are used to directly estimate the:
选项：
A.
expected return of a security.
B.
weights of securities in a portfolio.
C.
parameters of the capital market line.
解释：
A is correct.
In the market model, Ri =αi +βiRm +ei, the intercept, αi, and slope coefficient,βi, are estimated using historical security and market returns. These parameter estimates then are used to predict firm-specific returns that a security may earn in a future period.
不是说CAMP是看预期收益率的；这个Ri=α+β*Rm+残差项是通过真实历史数据，回归出α和β吗？这道题问算预期收益率的，怎么又用这个了呢？
