SEMINÁRIO: Bonus-Malus Systems: A Brief Discussion of Some of the Problems


  • Prof. Rahim Mahmoudvand – Department of Statistics, Bu-Ali Sina University, Hamedain, Iran
  • FCUL – Campo Grande – Bloco C6 Piso 4 – Sala: 6.4.30 – 14:00h
  • Quarta-feira, 15 de Fevereiro de 2017
  • Referência Projeto: Projecto FCT: UID/MAT/00006/2013

A Bonus-Malus System (BMS) is one of the ratemaking methods generally used in automobile insurance. BMS penalizes policyholders at faults for one or more claims by a premium surcharge, known as malus, and rewards the policyholders with a claim-free year by granting discount in the premium say bonus. An optimal BMS should be possibly fair for policyholders and financially balanced for the insurer. While much progress has been made on the development of BMS but for practical applications, many questions remain, including the reliability and efficiency of the systems. To deal with system efficiency ‘rigorously’ an open portfolio assumption must be considered. The approximation techniques proposed for this purpose are largely at a conceptual stage. In this talk, we categorize the existing BMS and then discuss the challenges in both theory and practice.

Keywords: Automobile insurance, Bonus-Malus System, Portfolio.