但是跑到porfolio部分的内容里,这一概念market return- risk free rate 又变成了market risk premium
不知道考试时候遇到这样的问题该如何处理
这个针对的内容不一样,前者是泛泛的谈,后者具体谈,我以为
cost of equity=riskfree rate + equity risk premium, or, to put it in formula
rE=rf + equity risk premium
=rf + beta x market risk premium
=rf + beta x (rM - rf)
so, equity risk premium =\= market risk premium
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