Skip to main content
Log in

Bonus-Malus scales using exponential loss functions

Bonus-Malus-Tarife auf der Basis von exponentiellen Verlustfunktionen

  • Published:
Blätter der DGVFM

Zusammenfassung

Diese Arbeit konzentriert sich auf die Konstruktion von Bonus-Malus-Systemen in der Kfz-Haftpflichtversicherung. Insbesondere wird eine praktische Methode vorgestellt, urn optimale Bonus-Malus-Tarife mit vemünftigen Buβen zu konstruieren, welche kommerziell implementiert werden konnen. Dazu wird die Symmetric zwische Uber-und Unterbelastung, die sich in der üblichen quadratischen Verlustfunktion ausdrückt, durch die Einführung parametrischer asymmetrischer Verlustfunktionen vom Exponentialtyp aufgebrochen. Das resultierende System besitzt die erwiinschte finanzielle Stabilitätseigenschaft.

Summary

This paper focuses on techniques for constructing Bonus-Malus systems in third party liability automobile insurance. Specifically, the article presents a practical method for constructing optimal Bonus-Malus scales with reasonable penalties that can be commercially implemented. For this purpose, the symmetry between the overcharges and the undercharges reflected in the usual quadratic loss function is broken through the introduction of parametric asymmetric loss functions of exponential type. The resulting system possesses the desirable financial stability property.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. Bermudez, L;M. Denuit;J. Dhaene;1. Morillo (2000): Optimal Bonus-Malus systems integrating a priori risk classification. Discussion Paper, Institut de Statistique, Université Catholique de Louvain, Louvain-la-Neuve, Belgium.

    Google Scholar 

  2. Borgan, ó.; J. M. Hoem; R. Norberg (1981): A nonasymptotic criterion for the evaluation of automobile bonus systems. Scandinavian Actuarial Journal, 265–278.

  3. Denuit, M.; Ph. Lambert (2000): Smoothed NPML estimation of the risk distribution. Proceedings of the Casualty Actuarial Society, to appear.

  4. De Pril, N.;M. J. Goovaerts (1983): Bounds for the optimal critical claim size of a bonus system. Insurance: Mathematics and Economics 2, 27–32.

    Article  MATH  Google Scholar 

  5. Dionne, G.;C. Vanasse (1989): A generalization of actuarial automobile insurance rating models: the Negative Binomial distribution with a regression component. ASTIN Bulletin 19, 199–212.

    Article  Google Scholar 

  6. Dionne, G.;C. Vanasse (1992): Automobile insurance ratemaking in the presence of asymmetrical information. Journal of Applied Econometrics 7, 149–165.

    Article  Google Scholar 

  7. Dufresne, F. (1988): Distribution stationnaire d’un systéme bonus-malus et probability de ruine. ASTIN Bulletin 18, 31–46.

    Article  Google Scholar 

  8. Dufresne, F. (1988): The efficiency of the Swiss Bonus-Malus system. Bulletin of the Swiss Association of Actuaries, 29–41.

  9. Ferreira, J. (1977): Identifying equitable insurance premiums for risk classes: an alternative to the classical approach. Lecture presented at the 23th international meeting of the Institute of Management Sciences, Athens, Greece.

  10. Gilde, V.; B. Sundt (1989): On Bonus systems with credibility scales. Scandinavian Actuarial Journal, 13–22.

  11. Lemaire, J. (1979): How to define a Bonus-Malus system with an exponential utility function. ASTIN Bulletin 10, 274–282.

    MathSciNet  Google Scholar 

  12. Lemaire, J. (1995): Bonus-Malus Systems in Automobile Insurance. Kluwer Academic Publisher, Boston.

    Google Scholar 

  13. Lemaire, J.; E. Vandermeulen (1983): Une propriét’e du principe de l’espérance mathématique. Bulletin Trimestriel de l’Institut des Actuaires Français, 5–14.

  14. Norberg, R. (1976): A credibility theory for automobile bonus system. Scandinavian Actuarial Journal, 92–107.

  15. Pinquet, J. (1997): Allowance for cost of claims in Bonus-Malus systems. ASTIN Bulletin 27, 33–57.

    Article  Google Scholar 

  16. Pinquet, J. (2000): Experience rating through heterogeneous models. In Handbook of Insurance, edited by G. Dionne. Kluwer Academic Publishers.

  17. Rolski, T.;H. Schmidli;V. Schmidt;J. Teugels (1999): Stochastic Processes for Insurance and Finance. John Wiley & Sons, New York.

    MATH  Google Scholar 

  18. Simar, L (1976): Maximum likelihood estimation of a compound Poisson process. Annals of Statistics 4, 1200–1209.

    Article  MATH  MathSciNet  Google Scholar 

  19. Taylor, G. (1997): Setting a Bonus-Malus scale in the presence of other rating factors. ASTIN Bulletin 27, 319–327.

    Article  Google Scholar 

  20. Walhin, J.F.;J. Paris (1999): Using mixed Poisson distributions in connection with BonusMalus systems. ASTIN Bulletin 29, 81–99.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Denuit, M., Dhaene, J. Bonus-Malus scales using exponential loss functions. Blätter DGVFM 25, 13–27 (2001). https://doi.org/10.1007/BF02857113

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02857113

Keywords

Navigation