Category
Probability & statistics
Store
Wordery
Brand
Vdm verlag
Stochastic and Copula Models for Credit Derivatives : 9783639212570 : 02 Feb 2010 : We prove results relating to the exit time of a stochastic process from a region in N-dimensional space. We compute certain stochastic integrals involving the exit time. Taking a Gaussian copula model for the hitting time behavior, We derive explicit formulas for CDO tranche sensitivity to parameter variations, and prove results concerning the qualitative behavior of such tranche sensitivities, as well as the large-N behavior, for a homogeneous portfolio governed by the one-factor Gaussian copula. A Poisson-mixture model is also investigated in a similar vein. Relevant simulations are presented.
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