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Correlation Between Intensity and Recovery in Credit Risk Models

Raquel Gaspar and Irina Slinko ()

No 614, SSE/EFI Working Paper Series in Economics and Finance from Stockholm School of Economics

Abstract: We start by presenting a reduced-form multiple default type of model and derive abstract results on the influence of a state variable X on credit spreads, when both the intensity and the loss quota distribution are driven by X. The aim is to apply the results to a concrete real life situation, namely, to the influence of macroeconomic risks on credit spreads term structures. There has been increasing support in the empirical literature that both the probability of default (PD) and the loss given default (LGD) are correlated and driven by macroeconomic variables. Paradoxically, there has been very little effort from the theoretical literature to develop credit risk models that would include this possibility. A possible justification has to do with the increase in complexity this leads to, even for the "treatable" default intensity models. The goal of this paper is to develop the theoretical framework needed to handle this situation and, through numerical simulation, understand the impact on credit risk term structures of the macroeconomic risks. In the proposed model the state of the economy is modeled trough the dynamics of a market index, that enters directly on the functional form of both the intensity of default and the distribution of the loss quota given default. Given this setup, we are able to make periods of economic depression, periods of higher default intensity as well as periods where low recovery is more likely, producing a business cycle effect. Furthermore, we allow for the possibility of an index volatility that depends negatively on the index level and show that, when we include this realistic feature, the impacts on the credit spread term structure are emphasized.

Keywords: Credit risk; sistematic risk; intensity models; recovery; credit spreads (search for similar items in EconPapers)
JEL-codes: C15 G12 G13 G33 (search for similar items in EconPapers)
Pages: 44 pages
Date: 2005-11-22
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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