A Model to Price Puttable Corporate Bonds with Default Risk
This paper presents a model for pricing puttable corporate bonds that are subject to default risk. The model incorporates three essential ingredients in the pricing of defaultable puttable bonds: stochastic interest rate, default risk, and put provision. The stochastic interest rate is modeled as a square-root diffusion process. The default risk is modeled as a constant spread, with the magnitude of this spread impacting the probability of a Poisson process governing the arrival of the default event. The put provision is modeled as a constraint on the value of the bond in the finite difference scheme. This paper can be used both as a benchmark for models for pricing puttable corporate bonds that are subject to default risk and as a direction for future research.
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