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Chinese Journal of Management Science ›› 2008, Vol. 16 ›› Issue (5): 22-27.

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Study on the Default Correlation Based on Risk Neural Copula

TONG Zhong-wen, HE Jian-min   

  1. School of Economics & Management, South East University, Nanjing 211189, China
  • Received:2008-03-10 Revised:2008-09-28 Online:2008-10-31 Published:2008-10-31

Abstract: The estimation of default probability is a key of the IRB approach,and default correlation affects the default a little. Now most studies on it take asset correlation as substitution. Risk neural can reduce the estimation error from model risk. Here we design the risk neural Copulas aceording to the nature of CDSs,advance Copula choosing way and have an empirical analysis,then find the 8 freedom student t-Copula is the best.

Key words: default correlation, copula, risk neural

CLC Number: