NO.PZ2019040801000066
问题如下:
Analyst Frank estimates the volatilities of two variables by using the GARCH(1,1) model. Now Frank plans to estimate covariance between the 2 variables. If Frank wants to generate a consistent correlation estimate between the 2 variables, which models will Frank most likely choose?
选项:
A.GARCH(1,1) model.
B.Geometrically weighted historical volatility model.
C.EWMA model.
D.Weighted historical volatility model.
解释:
A is correct.
考点:Estimating Correlations
解析:想保持一致性,协方差的预估方法就要选择与波动率预估相同的方法。因为这两个变量的波动率使通过GARCH(1,1)模型来预估的,所以应该选择一致的GARCH(1,1)模型。
在课件哪里出现?