Iris2018-10-05 11:29:15
The standard VaR calculation for extension to multiple periods assumes that returns are serially uncorrelated. If prices display trends, the true VaR will be: A. The same as the standard VaR. B. Greater than the standard VaR. C. Less than the standard VaR. D. Unable to be determined. 没有想明白这道题,请老师再解释一下
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Cindy2018-10-08 15:45:17
同学你好,咱们原本算多期的VaR用的是平方根法则,它是假设没有相关性的,现在有了trend,即趋势,有趋势就说明相关性大于0,既然相关性大于0,那么算出来的VaR值肯定变大了
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