嗨，努力学习的PZer你好：
答案没问题。题目说了 “The risk-free rate and the market risk premium are expected to remain unchanged at 6% and 8%”,也就是说market risk premium是8%，market risk premium=E(Rm) - Rf，直接就是8%，不需要再用8%-6%
----------------------------------------------努力的时光都是限量版，加油！
