Answer:
Coupon rate
Step-by-step explanation:
Bonds are fixed-income securities that involves a contractual obligation between the lender and the borrower wherein the lender makes certain funds available to the borrower in return for periodic interest payment-coupon rate as well as the repayment of principal upon redemption.
Coupon rate is the fixed interest payment on the bonds on semi-annually or annually basis.The coupon rate is a way of making cash available to investors in the bonds from time to time for transactionary purposes.
Imagine a pensioner that invested his entire retirement benefits in bonds,that would require some cash on regular basis to keep body and soul together,that is power of coupon interest.