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Dynamic hedging of synthetic CDO tranches with spread risk and default contagion

机译:具有传播风险和违约传染性的合成CDO债券的动态对冲

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摘要

The paper is concerned with the hedging of credit derivatives, in particular synthetic CDO tranches, in a dynamic portfolio credit risk model with spread risk and default contagion. The model is constructed and studied via Markov-chain techniques. We discuss the immunization of a CDO tranche against spread- and event risk in the Markov-chain model and compare the results with market-standard hedge ratios obtained in a Gauss copula model. In the main part of the paper we derive model-based dynamic hedging strategies and study their properties in numerical experiments.
机译:本文关注的是在具有价差风险和违约传染性的动态投资组合信用风险模型中对信用衍生工具(尤其是合成CDO份额)的对冲。该模型是通过马尔可夫链技术构建和研究的。我们讨论了针对马尔可夫链模型中的传播风险和事件风险对CDO批次进行的免疫接种,并将结果与​​在高斯copula模型中获得的市场标准对冲比率进行了比较。在本文的主要部分中,我们推导了基于模型的动态对冲策略,并在数值实验中研究了它们的特性。

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