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Moment generating functions of compound renewal sums with discounted claims

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  • Ghislain Léveillé
  • José Garrido
  • Ya Fang Wang

Abstract

Léveillé & Garrido (2001a, 2001b) have obtained recursive formulas for the moments of compound renewal sums with discounted claims, which incorporate both, Andersen's (1957) generalization of the classical risk model, where the claim number process is an ordinary renewal process, and Taylor's (1979), where the joint effect of the claims cost inflation and investment income on a compound Poisson risk process is considered. In this paper, assuming certain regularity conditions, we improve the preceding results by examining more deeply the asymptotic and finite time moment generating functions of the discounted aggregate claims process. Examples are given for claim inter-arrival times and claim severity following phase-type distributions, such as the Erlang case.

Suggested Citation

  • Ghislain Léveillé & José Garrido & Ya Fang Wang, 2010. "Moment generating functions of compound renewal sums with discounted claims," Scandinavian Actuarial Journal, Taylor & Francis Journals, vol. 2010(3), pages 165-184.
    • Handle: RePEc:taf:sactxx:v:2010:y:2010:i:3:p:165-184
    DOI: 10.1080/03461230902745842
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