Consider a bond selling at its par value of US $l 000, with a six year to maturity and a 7% annual coupon rate.
Required:
i) Calculate the bond's duration.
ii) What is the modified duration of the bond?
iii) If the yield to maturity on the bond increased to 8%, what happens to the bonds duration? Wl1Y does this change occur?
iv) Why must the duration of a coupon bearing bond always be less than the time to its maturity date?