TY - JOUR T1 - Sensitivity Analysis of Credit Risk Measures in the Beta Binomial Framework JF - The Journal of Fixed Income SP - 66 LP - 76 DO - 10.3905/JFI.2010.19.3.066 VL - 19 IS - 3 AU - Franck Moraux Y1 - 2009/12/31 UR - https://pm-research.com/content/19/3/66.abstract N2 - This article reconsiders the beta binomial approach for modeling default risk in a homogenous credit portfolio. It first introduces a new parameterization of the beta mixing distribution that is now a function of the common default probability and the common default correlation. It then focuses on the correlation parameter and derives closed-form expressions for sensitivities of key credit risk indicators. Results of the sensitivity and elasticity analysis show that the common default correlation impacts the credit at risk and expected shortfall quite differently. The article also examines an application on CDOs to highlight the key role of the common default correlation on the different tranches.TOPICS: Credit risk management, statistical methods, CLOs, CDOs, and other structured credit ER -