Independent solution

How to solve this Cash-Flow and Risk Matching question

Setup

Setup

Full immunization of one liability requires equal present value, equal duration, and asset payments before and after the liability date.

PL=5000(1.05)3=4319.188,DL=3P_L=5000(1.05)^{-3}=4319.188,\qquad D_L=3

Model

Model

Set I has the correct current value and a weighted payment time of three years.

PI=4319.192,DI=3.000P_I=4319.192,\qquad D_I=3.000

Compute

Compute

Set II matches value but not duration, while set III already fails the value test.

PII=4319.190, DII=2.538;PIII=4617.642P_{II}=4319.190,\ D_{II}=2.538;\qquad P_{III}=4617.642

Answer

Answer

Only set I satisfies all conditions, corresponding to choice A.

set I only(A)\boxed{\text{set I only}\quad\text{(A)}}