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Methods for estimating the optimal dividend barrier and the probability of ruin
Journal article   Peer reviewed

Methods for estimating the optimal dividend barrier and the probability of ruin

Hans U Gerber, Elias S.W Shiu and Nathaniel Smith
Insurance, mathematics & economics, Vol.42(1), pp.243-254
2008
DOI: 10.1016/j.insmatheco.2007.02.002

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Abstract

In applications of collective risk theory, complete information about the individual claim amount distribution is often not known, but reliable estimates of its first few moments may be available. For such a situation, this paper develops methods for estimating the optimal dividend barrier and the probability of ruin. In particular, two De Vylder approximations are explained, and the first and second order diffusion approximations are examined. For several claim amount distributions, the approximate values are compared numerically with the exact values. The De Vylder and diffusion approximations can be adapted to the more general situation where the aggregate claims process is a Lévy process with nonnegative increments.
Ruin probability Gamma processes Optimal dividend barrier Lundberg function Subordinators De Vylder approximations Lévy processes Diffusion approximations Lundberg’s fundamental equation

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