大同学2025-01-06 14:12:25
老师这个案例“Is Markov correct regarding the necessary conditions to immunize the GIC portfolio for his company?”这道题,到底选择什么,以及为什么选能解释一下吗?谢谢!
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Simon2025-01-14 13:23:49
同学,上午好。题目选A。
原文描述:First, the new single-period immunization strategy should require as a minimum condition that the duration of the bond portfolio equal the investment horizon. In addition, if the bond portfolio has a yield to maturity equal to the target yield and a maturity equal to the investment horizon, then the target value will be achieved".
duration of the bond portfolio equal the investment horizon这句是正确的。
a yield to maturity equal to the target yield and a maturity equal to the investment horizon,这句是错的。
所以答案选A。duration的描述是正确的,但债券YTM描述是错的。
对于单负债,要满足的是
1. 资产的初始市场价值要等于或超过负债的现值(PVA ≥ PVL)
2. 组合的麦考利久期要匹配负债的到期日(DA = DL)
3. 最小化资产的convexity
然后
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