NO.PZ2018122701000001
问题如下:
Now that there are 1000 observations with a VaR of 1.6 at the 95% confidence level calculated from historical simulations, which of the following statements is most likely to be true?
选项:
A.The observed values obey the normal distribution.
B.The observed values obey the lognormal distribution.
C.The tails of the observed value distribution are fatter than the standard normal distribution
D.The tails of the observed value distribution are thinner than the standard normal distribution
解释:
D is correct.
考点historical simulation
解析:如果是满足标准正态分布,那95%分位数的VAR值应为1.65,现在是1.6,所以尾巴上的分布应该比正态分布瘦。
正态分布95%对应的VaR分位点是1.65,现在这个经验分布95%的VaR的分位点是1.6,同样的累计概率情况,也就是面积是一样的情况下,那只能是经验分布肥尾啊。为什么这块是瘦尾?