Explaining Credit Default Swap Spreads with the Equity Volatility and Jump Risks of Individual Firms

Benjamin Yibin Zhang, Hao Zhou and Haibin Zhu

The Review of Financial Studies, 2009, vol. 22, issue 12, 5099-5131

Abstract: This paper attempts to explain the credit default swap (CDS) premium, using a novel approach to identify the volatility and jump risks of individual firms from high-frequency equity prices. Our empirical results suggest that the volatility risk alone predicts 48% of the variation in CDS spread levels, whereas the jump risk alone forecasts 19%. After controlling for credit ratings, macroeconomic conditions, and firms' balance sheet information, we can explain 73% of the total variation. We calibrate a Merton-type structural model with stochastic volatility and jumps, which can help to match credit spreads after controlling for the historical default rates. Simulation evidence suggests that the high-frequency-based volatility measures can help to explain the credit spreads, above and beyond what is already captured by the true leverage ratio. The Author 2009. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org, Oxford University Press.

Date: 2009
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Working Paper: Explaining credit default swap spreads with equity volatility and jump risks of individual firms (2005)
Working Paper: Explaining credit default swap spreads with the equity volatility and jump risks of individual firms (2005)
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