RFS Advance Access published online on August 19, 2008
Review of Financial Studies, doi:10.1093/rfs/hhn071
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Explaining the Level of Credit Spreads: Option-Implied Jump Risk Premia in a Firm Value Model
Yale School of Management, International Center for Finance
University of Amsterdam Business School
Finance Department, INSEAD
Address correspondence to Joost Driessen, University of Amsterdam Business School, Roetersstraat 11, 1018 WB Amsterdam, the Netherlands and Netspar, telephone: +31-20-5255263; e-mail: J.J.A.G.Driessen{at}uva.nl.
JEL Classification: G12, G13
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We study whether option-implied jump risk premia can explain the high observed level of credit spreads. We use a structural jump-diffusion firm value model to assess the level of credit spreads generated by option-implied jump risk premia. Prices and returns of equity index and individual options are used to estimate the jump parameters. We further calibrate the model to historical information on default risk and the equity premium. The results show that incorporating option-implied jump risk premia brings predicted credit spread levels much closer to observed levels. The introduction of jumps also helps to improve the fit of the volatility of credit spreads and equity returns.
We thank Bernard Dumas, Frank de Jong, Hayne Leland, Liuren Wu, seminar participants at HEC Lausanne, the BIS workshop "Pricing of Credit Risk" (in particular, the discussants Varqa Khadem and Garry Young), the 2006 EFA Meetings in Zurich, the 2006 Venice Conference on Credit Risk, and the Netspar Pension Day at Tilburg University for helpful comments and suggestions. We are very grateful for the comments and suggestions of the Editor (Yacine Aït-Sahalia) and of two anonymous referees.
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