THE COST OF HIGH‐YIELD BOND FINANCING

In this paper, we present a model to determine the interest cost of high‐yield (HY) bond financing. We first denmonstrate that, with a relatively high coupon rate, HY bonds have a significantly higher call risk than investment‐grade bonds, and the effective life of the bond is closer to the call deferment period. Consequently, the interest cost is more affected by the duration measure than by the years to maturity, or the call feature. Furthermore, the HY bond market is segmented by the purpose of the proceeds. The interest cost is, on average, 27 basis points higher if the fund is used to finance takeover activities. The third difference we show is that firms have to pay 11 basis points more in interest costs for every additional 1 million HY bond financing. We attribute this exception to the expected illiquidity of large‐issue HY bond in the secondary market when default risk premium increases. Furthermore, the HY bond interest cost is less sensitive to market uncertainty than the cost of treasury bonds, since bonds with high coupon rates have low price risk when the interest rate fluctuates.