问题如下：
Empirical studies of the single-factor market model show the explanatory power of the model is rather high. True or false? Discuss.
选项：
A.True
B.False
解释：
False
Empirical studies of the single-factor market model (i.e., CAPM) show that its explanatory power is rather low.
这是个结论，需要记住吗
