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Forward Equations for Portfolio Credit Derivatives
Rama Cont Columbia University - Center for Financial Engineering; Columbia University - Department of Industrial Engineering and Operations Research (IEOR) Ioana A. Savescu Merrill Lynch & Co. - Merrill Lynch, UK 2008 Columbia University Center for Financial Engineering, Financial Engineering Report No. 2008-05 Abstract: We introduce an alternative approach for computing the values of CDO tranche spreads in reduced-form models for portfolio credit derivatives ("top-down" models), which allows for efficient computations and can be used as an ingredient of an efficient calibration algorithm. Our approach is based on the solution of a system of ordinary differential equations, which is the analogue for portfolio credit derivatives of Dupire's famous equation for call option prices. It allows to efficiently price CDOs and other portfolio credit derivatives without Monte Carlo simulation.
Keywords: credit risk, portfolio credit derivatives, CDO, derivative pricing, tranche JEL Classifications: G13,C14, C63 Working Paper SeriesDate posted: April 25, 2008 ; Last revised: April 25, 2008Suggested CitationContact Information
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