1000001205792024-02-12 23:08:51
match single liability时,请问如何理解macaulay与investment horizon相等时,reinvestment risk与price risk相等,能详细推导一下吗?
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Tom2024-02-13 08:48:30
同学您好,这个概念是为了便于理解的解释,没有数学公式推导。immunization的核心条件是asset duration与liability duration相等,可以这样理解:将liability看成是零息债券,其duration = 到期时间,而为了保证liability被及时偿付,investment horizon需要等于到期时间,所以investment horizon = 到期时间 = liability duration
为了保证当市场利率波动时,asset和liability的波动相同,需要使asset duration = liability duration,自然也就等于investment horizon
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