NO.PZ2016082406000084
问题如下:
A risk analyst is trying to estimate the credit VAR for a portfolio of two risky bonds. The credit VAR is defined as the maximum unexpected loss at a confidence level of 99.9% over a one-month horizon. Assume that each bond is valued at $500,000 one month forward, and the one-year cumulative default probability is 2% for each of these bonds. What is the best estimate of the credit VAR for this portfolio, assuming no default correlation and no recovery?
选项: A. $841
B. $1,682
C. $998,318
D. $498,318
解释:
ANSWER: D
As in the previous question, the monthly default probability is 0.00168. The following table shows the distribution of credit losses.
This gives an expected loss of $1,682, the same as before. Next, $500,000 is the WCL at a minimum 99.9% confidence level because the total probability of observing a number equal to or lower than this is greater than 99.9%. The credit VAR is then $500,000 - $1,682 = $498,318.
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