Consider a bond with settlement date 01/19/2015. Maturity date of the bond is 11/15/2024. The coupon rate of the bond is 7%, and the bond pays coupons semi annually. The bond has YTM=8%. Find the duration of the bond. What would be the duration of the bond if coupons were paid annually? Are the two durations you calculated different? If so, how would you explain the difference?