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答案里面没有算 weight? 根号下的 1.8*0.08 是算的单个的 VaR, 而求组合的时候,应该把单个的VaR 乘以weight,再求平方。而答案中没有算weight,但是视频中计算了。 以哪个为准?
查看试题 已回答A portfolio contains three independent bonds each with identical (i.i.d.) $100 par value, 3.0% probability of default (EDF) and loss given default (LGD) of 100%. What is, respectively, the 95.0% confident and 99.0% confident portfolio value at risk (VaR)? 答案:$100 and $100 at both 95% and 99% 这一题可否再详细解释一下,为什么是100元?VaR要怎么求
查看试题 已回答Over the next year, an operational process model predicts a 95% probability of no loss occurrence and a 5% probability of a single loss occurrence. If the single loss occurs, the severity is characterized by three possible outcomes: $10.0 million loss with 20% probability, $18.0 million loss with 50% probability, and $25.0 million loss with 30% probability. What is the model's one-year 90% expected shortfall (ES)? 这一题很不理解,预期5%损失的是18.5million,那变成10%预期损失不应该是乘以2吗,为什么反而是除以2?
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