梁同学2018-03-26 21:27:22
reading10中estimating core capital with mortality这部分课后习题给的答案是discounted value=(real spending*joint probability)/(1+real risk free rate)^t和discounted value=(real spending*(1+inflation)^t*joint probability)/(1+risk free rate)^t这两种。但在官方教材例题那里他用的却是discounted value=inflation adjusted annual spending/(1+real rate)^t,与最上面的公式冲突,这是为什么啊
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金程教育陈老师2018-03-27 10:02:22
同学,你好——不冲突的,分子分母要么同时考虑通胀,要么都不考虑通胀;教材上的inflation adjusted为剔除通胀的影响,与分母real rate是一致的~
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