NO.PZ2023091701000104
问题如下:
A risk manager is considering switching from using historical volatility to using implied volatility in VaR calculations. Which of the following statements about implied volatility is correct?
选项:
A.Implied volatility estimates are model dependent and a misspecified model can result in erroneous forecasts.
B.Implied volatility estimates require that historical returns are indicative of future returns.
C.Implied volatility estimates tend to underestimate future volatility as a result of mean reversion
D.Implied volatility estimates are generally accurate even if there is only one trade in the option used to calculate an estimate.
解释:
A为什么对?A说的不是implied volatility的劣势吗?题目不是说将historical volatility 转换成implied volatility 吗?
B为什么错呢