Exercise


Nov 20'23

Answer

Solution: A

The PV and duration of the liability payments using [math]7 \%[/math] rate are [math]P V=1,750,000 v^{12}=777,021[/math] and duration 12 .

The amount invested in the 5-year bond is [math]\frac{242,180}{1.07^5}=172,671[/math], Thus, the amount invested in the 14 year bond is [math]777,021-172,671=604,350[/math]. The maturity value of the 14 -year bond is [math]604,350(1.07)^{14}=1,558,337[/math].

The surplus if the interest rate moves to [math]4 \%[/math] is:

[[math]] P V_A-P V_L=\left(\frac{242,180}{1.04^5}+\frac{1,558,337}{1.04^{14}}\right)-\frac{1,750,000}{1.04^{12}}=5,910 [[/math]]

Copyright 2023 . The Society of Actuaries, Schaumburg, Illinois. Reproduced with permission.

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