于同学2021-02-03 19:19:09
老师好,请问下,这道题中B选项表示95%概率下损失少于12.5million,意思不就是95%概率下最多损失12.5million么?为什么B选项不对呢? C选项的意思预计在一个月5%的时间内发生的最小损失为12.5million,这个表示的是5%的时间而不是5%的概率,这个表述为什么正确呢?
回答(1)
Sherry Xie2021-02-07 17:15:49
同学你好,
记一下这三种说法,都是正确的:
1. 12.5 million is the minimum loss we would expect 5% of the time;
2. 5% of the time, losses would be at least 12.5 million; or
3. we would expect a loss of no more than 12.5 million 95% of the time.
所以B选项是错的,改成no more than.
另外, If VaR is measured on a daily basis, and a typical month has 20–22 business days, then 5% of the days equates to about one day per month。 所以5% of the time意思说的就是daily, 强调的是time horizon.
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