Claudio, Ferrarese (2006): A comparative analysis of correlation skew modeling techniques for CDO index tranches.

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Abstract
In this work we present an analysis of CDO pricing models with a focus on “correlation skew models”. These models are extensions of the classic single factor Gaussian copula and may generate a skew. We consider examples with fat tailed distributions, stochastic and local correlation which generally provide a closer fit to market quotes. We present an additional variation of the stochastic correlation framework using normal inverse Gaussian distributions. The numerical analysis is carried out using a large homogeneous portfolio approximation.
Item Type:  MPRA Paper 

Institution:  King’s College London 
Original Title:  A comparative analysis of correlation skew modeling techniques for CDO index tranches 
Language:  English 
Keywords:  default risks; CDOs; index tranches; factor model; copula; correlation skew; stochastic correlation 
Subjects:  C  Mathematical and Quantitative Methods > C6  Mathematical Methods; Programming Models; Mathematical and Simulation Modeling > C60  General C  Mathematical and Quantitative Methods > C0  General > C02  Mathematical Methods G  Financial Economics > G1  General Financial Markets > G12  Asset Pricing; Trading volume; Bond Interest Rates 
Item ID:  1668 
Depositing User:  Claudio Ferrarese 
Date Deposited:  06. Feb 2007 
Last Modified:  12. Feb 2013 04:20 
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URI:  http://mpra.ub.unimuenchen.de/id/eprint/1668 