Credit risk - A structural model with jumps and correlations

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

We set up a structural model to study credit risk for a portfolio containing several or many credit contracts. The model is based on a jump-diffusion process for the risk factors, i.e. for the company assets. We also include correlations between the companies. We discuss that models of this type have much in common with other problems in statistical physics and in the theory of complex systems. We study a simplified version of our model analytically. Furthermore, we perform extensive numerical simulations for the full model. The observables are the loss distribution of the credit portfolio, its moments and other quantities derived thereof. We compile detailed information about the parameter dependence of these observables. In the course of setting up and analyzing our model, we also give a review of credit risk modeling for a physics audience. (c) 2007 Elsevier B.V. All rights reserved.

Detaljer

Författare
  • Rudi Schäfer
  • Markus Sjolin
  • Andreas Sundin
  • Michal Wolanski
  • Thomas Guhr
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Fysik

Nyckelord

Originalspråkengelska
Sidor (från-till)533-569
TidskriftPhysica A: Statistical Mechanics and its Applications
Volym383
Utgivningsnummer2
StatusPublished - 2007
PublikationskategoriForskning
Peer review utfördJa