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Extremal Analysis of Flooding Risk and Its Catastrophe Bond Pricing

Author

Listed:
  • Jiayi Li

    (Department of Science Statistics with Data Science, The University of Edinburgh, Edinburgh EH15 1LR, UK)

  • Zhiyan Cai

    (Institute of Health Informatics, University College London, London WC1H 9BT, UK)

  • Yixuan Liu

    (Department of Financial and Actuarial Mathematics, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China)

  • Chengxiu Ling

    (Academy of Pharmacy, Xi’an Jiaotong-Liverpool University, Suzhou 215123, China)

Abstract

Catastrophic losses induced by natural disasters are receiving growing attention because of the severe increases in their magnitude and frequency. We first investigated the extreme tail behavior of flood-caused economic losses and maximum point precipitation based on the peaks-over-threshold method and point process (PP) model and its extreme tail dependence. We found that both maximum point precipitation and direct economic losses are well-modeled by the PP approach with certain tail dependence. These findings were further utilized to design a layered compensation insurance scheme using estimated value-at-risk (VaR) and conditional VaR (CVaR) among all stakeholders. To diversify the higher level of losses due to extreme precipitation, we designed a coupon paying catastrophe bond triggered by hierarchical maximum point precipitation level, based on the mild assumption on the independence between flood-caused risk and financial risk. The pricing sensitivity was quantitatively analyzed in terms of the tail risk of the flood disaster and the distortion magnitude and the market risk in Wang’s transform. Our trigger process was carefully designed using a compound Poisson process, modeling both the frequency and the layered intensity of flood disasters. Lastly, regulations and practical suggestions are provided regarding the flood risk prevention and warning.

Suggested Citation

  • Jiayi Li & Zhiyan Cai & Yixuan Liu & Chengxiu Ling, 2022. "Extremal Analysis of Flooding Risk and Its Catastrophe Bond Pricing," Mathematics, MDPI, vol. 11(1), pages 1-14, December.
    • Handle: RePEc:gam:jmathe:v:11:y:2022:i:1:p:114-:d:1016181
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    References listed on IDEAS

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    Cited by:

    1. Titi Purwandari & Yuyun Hidayat & Sukono & Kalfin & Riza Andrian Ibrahim & Subiyanto, 2024. "Development of the Black–Scholes Model for Determining Insurance Premiums to Mitigate the Risk of Disaster Losses Using the Principles of Mutual Cooperation and Regional Economic Growth," Risks, MDPI, vol. 12(7), pages 1-21, July.
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