We show how to price credit default options and swaps based on a four-factor defaultable term-structure model. One of the key factors is a macroeconomic factor that takes into account the impact of the general economy on the quality of firms. We derive the pricing functions and show how to...

In this paper, we propose a method to price collateralized debt obligations (CDO) within Merton's structural model on underlyings with a stochastic mean-reverting covariance dependence. There are two key elements in our development, first we reduce dimensionality and complexity using principal...

In this paper we present a prepayment-risk-neutral valuation model for fixed-rate Mortgage-Backed Securities. Our model is based on intensity models as used in credit-risk modeling and extends existing models for individual mortgage contracts in a proportional hazard framework. The general...