
Problems 285
(a) A
0
=0.08; A
1
=0.02; A
2
= −0.003; A
3
=0.0001;
(b) A
0
=0.06; A
1
=0.01; A
2
= −0.001; A
3
=0.0001.
Find the price of a call option on the zero-coupon bond (with maturity T =4
years) with strike K = $80 and the expiration time T
1
=1year. Hint: use the
following pricing formula
C = B(0,T)Φ(d
1
) − KB(0,T
1
)Φ(d
2
),
where
d
1
=
ln
B(0,T)
B(0,T
1
)K
+
V
2
√
V
,d
2
= d
1
−
√
V
and V =0.25.
How the pricing formula will change for a face value that is different from
$1? Assuming that face value is $80, calculate the price of such option. Com-
pare it with the previous result.
Problem A.5.6 The market price of a two-year bond at time t =0is $100.
The bond has the following payment