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Bonus-Malus Scale premiums for Tweedie’s compound Poisson models

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  • Boucher, Jean-Philippe
  • Coulibaly, Raïssa

Abstract

Based on the recent papers, two distributions for the total claims amount (loss cost) are considered: compound Poisson-gamma and Tweedie. Each is used as an underlying distribution in the Bonus-Malus Scale (BMS) model. The BMS model links the premium of an insurance contract to a function of the insurance experience of the related policy. In other words, the idea is to model the increase and the decrease in premiums for insureds who do or do not file claims. We applied our approach to a sample of data from a major insurance company in Canada. Data fit and predictability were analyzed. We showed that the studied models are exciting alternatives to consider from a practical point of view, and that predictive ratemaking models can address some important practical considerations.

Suggested Citation

  • Boucher, Jean-Philippe & Coulibaly, Raïssa, 2024. "Bonus-Malus Scale premiums for Tweedie’s compound Poisson models," Annals of Actuarial Science, Cambridge University Press, vol. 18(2), pages 509-533, July.
    • Handle: RePEc:cup:anacsi:v:18:y:2024:i:2:p:509-533_10
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