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Risk transference constraints in optimal reinsurance

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  • Balbás, Alejandro
  • Balbás, Beatriz
  • Balbás, Raquel
  • Heras, Antonio

Abstract

This paper will deal with the optimal reinsurance problem and will involve the goals of both insurer and reinsurer. In particular, the study will incorporate the initial (before reinsurance) risk that the reinsurer uses in order to diversify (or hedge) the risk ceded by the insurer, general methods to prevent the reinsurer moral hazard will be extended, and a new constraint will have to be satisfied by the selected reinsurance contract, namely, “the reinsurer increment of risk will have to be lower than the contract premium”. Simultaneously, since the contract must be attractive to the insurer too, “the contract premium will have to be lower than the insurer risk reduction”. Integrating both ideas, “the contract premium will have to be higher than the reinsurer risk growth and lower than the insurer risk mitigation”. Bearing in mind both requirements, that is, the protection against the moral hazard and the spread containing the contract premium, the optimal reinsurance problem will be studied under very general conditions about the risk measures and premium principles involved, general solutions will be provided, and a particular case with the conditional value at risk will be presented in more detail.

Suggested Citation

  • Balbás, Alejandro & Balbás, Beatriz & Balbás, Raquel & Heras, Antonio, 2022. "Risk transference constraints in optimal reinsurance," Insurance: Mathematics and Economics, Elsevier, vol. 103(C), pages 27-40.
    • Handle: RePEc:eee:insuma:v:103:y:2022:i:c:p:27-40
    DOI: 10.1016/j.insmatheco.2021.12.004
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    References listed on IDEAS

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    Cited by:

    1. Zhu, Michael B. & Ghossoub, Mario & Boonen, Tim J., 2023. "Equilibria and efficiency in a reinsurance market," Insurance: Mathematics and Economics, Elsevier, vol. 113(C), pages 24-49.
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    3. Alejandro Balbás & Beatriz Balbás & Raquel Balbás & Jean-Philippe Charron, 2023. "Bidual Representation of Expectiles," Risks, MDPI, vol. 11(12), pages 1-21, December.
    4. Qian Xiong & Zuoxiang Peng & Saralees Nadarajah, 2023. "Optimal Reinsurance under the Linear Combination of Risk Measures in the Presence of Reinsurance Loss Limit," Risks, MDPI, vol. 11(7), pages 1-26, July.

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    More about this item

    Keywords

    Optimal reinsurance; Risk measure; Moral hazard; Marginal indemnity; Relationships between premium and transferred risk;
    All these keywords.

    JEL classification:

    • G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies; Actuarial Studies
    • C44 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Operations Research; Statistical Decision Theory
    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis

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