nikkie2020-03-31 11:21:25
cash flow的计算是需要乘以D的啊,但是老师说C里面考虑了Duration是不对的
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Cindy2020-03-31 16:50:37
同学你好,干脆咱们重新把这道题梳理一下吧(#^.^#)
A.Principal mapping considers coupon and principal payments.本金映射只考虑了本金,并没有考虑到利息,所以这个说法不对
B. Duration mapping does not consider intermediate cash flows and the portfolio VaR using such method is less than the portfolio VaR using principal mapping.
这个选项可以这么理解,这里的久期映射指的是把所有的现金流综合在一起考虑的,用一个维度,即久期来反映。站在久期已经算好的前提下的话,其实这个时候我们单纯的用债券的久期乘以对应利率的VaR值,就能得到债券本身的VaR值了,这个算出来的VaR值肯定是小于本金映射算出来的VaR值的
C. Cash-flow mapping considers the timing of the redemption cash flow payments only,
redemption cash flow payments 指的是本金的回流,cash flow是本金和利息都会考虑的,这个也不对
D. Cash-flow mapping considers the present values of cash flows grouped into maturity buckets, and the undiversified portfolio VaR using cash-flow mapping is greater than the portfolio VaR using principal mapping.
现金流映射算出来的VaR值是比较小的,要小于本金映射的VaR值,所以这个说法不对。
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