NO.PZ2018062006000090
问题如下：
The benchmark rate is least likely to include:
选项：
A. expected inflation rate
B. expected real rate
C. credit risk
解释：
C is correct.
Credit risk is one of the components of spread or risk premium.
Both A and B is part of the benchmark or risk-free rate of return.
The expected real rate plus the expected inflation rate is the benchmark rate (risk-free rate of return) .
为什么real rate还要是expected呢？real rate不应该是expected的吧？ benchmark rate不一定非要说国债收益率吧？所以有credit risk也不是错误的吧？
