Simultaneous Calibration To A Range Of Portfolio Credit Derivatives With A Dynamic Discrete-Time Multi-Step Markov Loss Model
This article describes a dynamic discrete-time multi-step Markov model for the losses experienced by a given credit portfolio, and develops a method for the simultaneous calibration of the model to all available relevant market prices (for CDO's, forward-start CDO's, options on CDO's, leveraged super-senior tranches with loss triggers, etc.) established on a given day. The implementation is via an efficient linear programming procedure, and examples are given. The approach represents an extension of previous work (Walker, 2005, 2006; Torresetti et al., 2006) on the static loss-surface model to a model containing the necessary underlying dynamics.
Volume (Year): 12 (2009)
Issue (Month): 05 ()
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