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An identity based on the generalised negative binomial distribution with applications in ruin theory
Published online by Cambridge University Press: 10 September 2018
Abstract
In this study, we show how expressions for the probability of ultimate ruin can be obtained from the probability function of the time of ruin in a particular compound binomial risk model, and from the density of the time of ruin in a particular Sparre Andersen risk model. In each case evaluation of generalised binomial series is required, and the argument of each series has a common form. We evaluate these series by creating an identity based on the generalised negative binomial distribution. We also show how the same ideas apply to the probability function of the number of claims in a particular Sparre Andersen model.
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- © Institute and Faculty of Actuaries 2018