Matcha
2020-03-04 21:20老師好,請問這道題,違約相關(guān)系數(shù)是0和是1,計算上有什么區(qū)別? Suppose there is a $1,000,000 portfolio with n credits that each have a default probability, π = 2% and a zero recovery rate. The default correlation is 0 and n = 1,000. There is a probability of 28 defaults at the 95th percentile based on the binomial distribution with the parameters of n = 1,000 and π = 0.02. What is the credit VaR at the 95% confidence level based on these parameters?
所屬:FRM Part II 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個回答
Cindy助教
2020-03-05 13:54
該回答已被題主采納
同學(xué)你好,相關(guān)系數(shù)等于0的話,就意味每個貸款之間是互相不會受到影響的,此時,求貸款違約的概率,我們可以用二項分布來計算就可以了。不過這道題的話就不用求了,題目已經(jīng)告訴我們最差情況下的違約情況了
如果相關(guān)系數(shù)等于1的話,就意味著1筆貸款違約,另外一筆貸款一定違約,這樣,我們就可以把整個的貸款組合看成是一筆貸款,這樣處理問題就會簡化很多了
