曹同学2020-10-02 21:58:51
老师下面这段话怎么理解? Expected shortfall is a special case of the risk spectrum measure that is found by setting the weighting function to 1 / (1 − confidence level) for tail losses that all have an equal weight
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Cindy2020-10-03 15:50:46
同学你好,这句话的意思是,Es是一种风险测度,是一个平均的概念,它对超过var值得尾巴上的损失数据取平均
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好的,谢谢,1/(1-confidence level)这里怎么理解?
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同学你好,举个例子呀,比如confidence level=95%,那么ES就是1-confidence level=1-95%=5%,这5%的数据取平均就是ES,


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