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| Investigating the Role of Systematic and Firm-Specific Factors in Default Risk: Lessons from empirically evaluating credit risk models by Gurdip Bakshi of the University of Maryland, July 2006 Abstract: This paper proposes and empirically investigates a family of credit risk models driven by a two-factor structure for the short-interest rate and an additional third factor for firm-specific distress, using the reduced-form framework of Duffie and Singleton (1999). The set of firm- specific distress factors analyzed in the study include leverage, book-to-market, profitability, equity-volatility, and distance-to-default. Our estimation approach and performance yardsticks show that interest rate risk is of first-order importance for explaining variations in single-name defaultable coupon bond yields and credit spreads. When applied to low-grade bonds, a credit risk model that takes leverage into consideration reduces absolute yield mispricing by as much as 30% relative to a competing model that ignores leverage. None of the distress factors improve performance for high-grade bonds. A strategy relying on traded Treasury instruments is surprisingly effective in dynamically hedging credit exposures for firms in our sample. JEL Classification: G10, G11, G12. Keywords: Default risk models, reduced-form, leverage, distance-to-default, hedging. Published in: Journal of Business, Vol. 79, No. 4, (July 2006), pp. 1955-1988. Books Referenced in this Paper: (what is this?)
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