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Number of Accidents or Number of Claims? An Approach with Zero‐Inflated Poisson Models for Panel Data

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  • Jean‐Philippe Boucher
  • Michel Denuit
  • Montserrat Guillen

Abstract

The hunger for bonus is a well‐known phenomenon in insurance, meaning that the insured does not report all of his accidents to save bonus on his next year's premium. In this article, we assume that the number of accidents is based on a Poisson distribution but that the number of claims is generated by censorship of this Poisson distribution. Then, we present new models for panel count data based on the zero‐inflated Poisson distribution. From the claims distributions, we propose an approximation of the accident distribution, which can provide insight into the behavior of insureds. A numerical illustration based on the reported claims of a Spanish insurance company is included to support this discussion.

Suggested Citation

  • Jean‐Philippe Boucher & Michel Denuit & Montserrat Guillen, 2009. "Number of Accidents or Number of Claims? An Approach with Zero‐Inflated Poisson Models for Panel Data," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 76(4), pages 821-846, December.
    • Handle: RePEc:bla:jrinsu:v:76:y:2009:i:4:p:821-846
    DOI: 10.1111/j.1539-6975.2009.01321.x
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    References listed on IDEAS

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