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Affine Model for Credit Risk Analysis

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Author Info

  • Christian Gourieroux

    (Crest)

  • Alain Monfort

    (Crest)

  • Vassilis Polimenis

    (Crest)

Abstract

Continuous-time affine models have been recently introduced in the theoretical financial literature on credit risk. They provide a coherent modeling, rather easy to implement, but have not yet encountered the expected success among practitioners and regulators. This is likely due to a lack of flexibility of these models, which often implied poor fit, especially compared to more ad hoc approaches proposed by the industry. The aim of this article is to explain that this lack of flexibility is mainly due to the continuous-time assumption. We develop a discrete-time affine analysis of credit risk, explain how different types of factors can be introduced to capture separately the term structure of default correlation, default heterogeneity, correlation between default, and loss-given-default; we also explain why the factor dynamics are less constrained in discrete time and are able to reproduce complicated cycle effects. These models are finally used to derive a credit-VaR and various decompositions of the spreads for corporate bonds or first-to-default basket. Copyright 2006, Oxford University Press.

(This abstract was borrowed from another version of this item.)

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Bibliographic Info

Paper provided by Centre de Recherche en Economie et Statistique in its series Working Papers with number 2005-44.

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Length: 57
Date of creation: 2005
Date of revision:
Handle: RePEc:crs:wpaper:2005-44

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Cited by:
  1. Alain Monfort & Jean-Paul Renne, 2010. "Default, Liquidity and Crises : An Econometric Framework," Working Papers 2010-46, Centre de Recherche en Economie et Statistique.
  2. Monfort, A. & Renne, J-P., 2011. "Credit and liquidity risks in euro area sovereign yield curves," Working papers 352, Banque de France.
  3. Monfort, A. & Pegoraro, F., 2007. "Multi-Lag Term Structure Models with Stochastic Risk Premia," Working papers 189, Banque de France.
  4. Alain Monfort & Fulvio Pegoraro, 2007. "Switching VARMA Term Structure Models - Extended Version," Working Papers 2007-19, Centre de Recherche en Economie et Statistique.
  5. Gourieroux, C. & Monfort, A. & Sufana, R., 2010. "International money and stock market contingent claims," Journal of International Money and Finance, Elsevier, vol. 29(8), pages 1727-1751, December.
  6. Masakazu Miura & Kenichiro Tamaki & Takayuki Shiohama, 2013. "Asymptotic Expansion for Term Structures of Defaultable Bonds with Non-Gaussian Dependent Innovations," Asia-Pacific Financial Markets, Springer, vol. 20(4), pages 311-344, November.
  7. Bertholon, H. & Monfort, A. & Pegoraro, F., 2007. "Pricing and Inference with Mixtures of Conditionally Normal Processes," Working papers 188, Banque de France.
  8. Gourieroux, Christian & Sufana, Razvan, 2011. "Discrete time Wishart term structure models," Journal of Economic Dynamics and Control, Elsevier, vol. 35(6), pages 815-824, June.
  9. Bertholon, H. & Monfort, A. & Pegoraro, F., 2008. "Econometric Asset Pricing Modelling," Working papers 223, Banque de France.
  10. Gagliardini, P. & Gourieroux, C., 2005. "Migration correlation: Definition and efficient estimation," Journal of Banking & Finance, Elsevier, vol. 29(4), pages 865-894, April.
  11. Gourieroux, C. & Monfort, A., 2013. "Linear-price term structure models," Journal of Empirical Finance, Elsevier, vol. 24(C), pages 24-41.
  12. Monfort, A. & Pegoraro, F., 2012. "Asset Pricing with Second-Order Esscher Transforms," Working papers 397, Banque de France.

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