perpetual bond(redirected from Perpetual Debetures)
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A bond in which the issuer does not repay the principal. Rather, a perpetual bond pays the bondholder a fixed coupon as long as he/she holds it. Prices for perpetual bonds vary widely according to long-term interest rates. When interest rates rise, perpetual bonds fall and vice versa. Perpetual bonds are most common in the United Kingdom, where they were used originally to pay for the military.