Answer:
Laurel bond will decrease by 7.72%
Hardy bond will decrease by 15.8%
Step-by-step explanation:
current bond price $1,000
interest rate 8%
Laurel bond matures in 5 years, 10 semiannual payments
Hardy bonds matures in 16 years, 32 semiannual payments
if market interest increases to 10%
Laurel bond:
$1,000 / (1 + 5%)¹⁰ = $613.91
$40 x 7.7217 (annuity factor, 5%, 10 periods) = $308.87
market price = $922.78
% change = -7.72%
Hardy bond:
$1,000 / (1 + 5%)³² = $209.87
$40 x 15.80268 (annuity factor, 5%, 32 periods) = $632.11
market price = $841.98
% change = -15.8%