老师您好,第四题的B答案中(原版书P284)提到“the expected return reflects compensation for systematic risk. Based on the data provided we cannot conclude which industry is most attractive form a valuation standpoint”
这道题我不太理解,因为A中已经算出来三个行业的risk premium,可以比较出谁更大,三个RP分别加上相同的R(global portfolio)之后,他们之间的大小关系不是不变吗?为什么说无法比较呢?