问题如下:
Assume an investor has a credit position that has a market factor sensitivity of 0.4 and the
default threshold is at the 95% confidence level. According to the information above, what is
the realized market value used to reach this threshold
?
选项:
A. -0.257.
B. -0.379.
C. -0.512.
D. -0.343
解释:
D is correct.
考点: Single Factor Model
解析:95%对应的confidence level也就是5%的default loss level在标准正态分布里对应-1.645。
通过单因素模型:
可以解出m是-0.343。
为什么答案解析里等式左边是-1.645?从已有的条件 99%的单尾不是仅能知道k=1.645吗?