A five-year bond with a yield of 11% (continuously compounded) pays an 8% coupon at the end of each year.

(a)What is the bonds price?

(b)What is the bonds duration?

(c)Use the duration to calculate the effect on the bonds price of a 0.2% decrease in its yield.

(d)Recalculate the bonds price on the basis of a 10.8% per annum yield and verify that the result is in agreement with your answer to (c).