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A Model for Counterparty Risk with Geometric Attenuation Effect and the Valuation of CDS


  • Yunfen Bai

    (Department of Mathematics, Shanghai Jiaotong University;
    Department of Mathematics, Shijiazhuang College)

  • Xinhua Hu

    (Department of Mathematics, Shanghai Jiaotong University;)

  • Zhongxing Ye

    (Department of Mathematics, Shanghai Jiaotong University;)


In this paper, a geometric function is introduced to reflect the attenuation speed of impact of one firm's default to its partner. If two firms are competitions (copartners), the default intensity of one firm will decrease (increase) abruptly when the other firm defaults. As time goes on, the impact will decrease gradually until extinct. In this model, the joint distribution and marginal distributions of default times are derived by employing the change of measure, so can we value the fair swap premium of a CDS.

Suggested Citation

  • Yunfen Bai & Xinhua Hu & Zhongxing Ye, 2007. "A Model for Counterparty Risk with Geometric Attenuation Effect and the Valuation of CDS," Papers 0706.3331,
  • Handle: RePEc:arx:papers:0706.3331

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