A Note on Bond Risk Differential

Abstract

In a recent paper published in this journal [1], Bierman and Hass (BH) developed a model in which the risk differential that an investor would require to compensate him for the risk of default is stated as a function of the following variables: the probability of default on annual interest payments, (1-P1); the probability of default on the principal payment at the end of the maturity of the bond, (1-P2); the default-free rate, i, and the maturity, N.