Independent solution

How to solve this Spot and Forward Rates question

Setup

Setup

Use the two- and four-year spot rates that bracket the requested two-year forward interval.

s2=0.04s_2=0.04
s4=0.05s_4=0.05

Model

Model

Equate direct four-year accumulation with two years at the spot rate followed by two years at forward rate f.

(1.05)4=(1.04)2(1+f)2(1.05)^4=(1.04)^2(1+f)^2

Compute

Compute

Taking the positive square root gives f = 6.009615%.

f=((1.05)4(1.04)2)1/21=0.0600961538f=\left(\frac{(1.05)^4}{(1.04)^2}\right)^{1/2}-1=0.0600961538

Answer

Answer

The implied two-year rate at year 2 is approximately 6.0%, selecting choice E.

f6.0%(E)\boxed{f\approx6.0\%\quad\text{(E)}}