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Vulnerable options with regime switching and stochastic liquidity

Author

Listed:
  • He, Xin-Jiang
  • Pasricha, Puneet
  • Lu, Tuantuan
  • Lin, Sha

Abstract

Investigating default risk in pricing options holds significant practical importance, as nearly all market participants and institutions face credit risk. Additionally, economic cycles and asset liquidity are crucial factors that should be incorporated. This paper considers these factors and derives an analytical pricing formula. Specifically, we model the economic cycles through switching volatility driven by a continuous-time Markov chain, while we adopt a discounting factor based on market liquidity levels to model the asset liquidity. We establish a risk-neutral measure after embracing a regime-switching Esscher transform, and formulate a price representation to value vulnerable options analytically despite the complexity of the developed model. We conduct several numerical experiments to validate the model’s efficacy and flexibility.

Suggested Citation

  • He, Xin-Jiang & Pasricha, Puneet & Lu, Tuantuan & Lin, Sha, 2024. "Vulnerable options with regime switching and stochastic liquidity," The Quarterly Review of Economics and Finance, Elsevier, vol. 98(C).
    • Handle: RePEc:eee:quaeco:v:98:y:2024:i:c:s1062976924001364
    DOI: 10.1016/j.qref.2024.101930
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