RESEARCH ARTICLE

A contagion model with Markov regime-switching intensities

  • Yinghui DONG , 1,2 ,
  • Guojing WANG 3
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  • 1. Financial Engineering Research Center, Shanghai Jiao Tong University, Shanghai 200052, China
  • 2. Department of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215011, China
  • 3. Department of Mathematics and Center for Financial Engineering, Soochow University, Suzhou 215006, China

Received date: 19 Dec 2012

Accepted date: 08 May 2013

Published date: 01 Feb 2014

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

Abstract

We consider a two-dimensional reduced form contagion model with regime-switching interacting default intensities. The model assumes the intensities of the default times are driven by macro-economy described by a homogeneous Markov chain as well as the other default. By using the idea of ‘change of measure’ and some closed-form formulas for the Laplace transforms of the integrated intensity processes, we derive the two-dimensional conditional and unconditional joint distributions of the default times. Based on these results, we give the explicit formulas for the fair spreads of the first-to-default and second-to-default credit default swaps (CDSs) on two underlyings.

Cite this article

Yinghui DONG , Guojing WANG . A contagion model with Markov regime-switching intensities[J]. Frontiers of Mathematics in China, 2014 , 9(1) : 45 -62 . DOI: 10.1007/s11464-013-0311-0

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