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Title: On Exact Solutions for Dividend Strategies of Threshold and Linear Barrier Type in a Sparre Anderson Model
Author(s): ALBRECHER, Hansjörg , HARTINGER, Jürgen , THONHAUSER, Stefan
Journal: ASTIN Bulletin
Volume: 37    Issue: 2   Date: 2007   
Pages: 203-233
DOI: 10.2143/AST.37.2.2024065

Abstract :
For the classical Cramér-Lundberg risk model, a dividend strategy of threshold type has recently been suggested in the literature. This strategy consists of paying out part of the premium income as dividends to shareholders whenever the free surplus is above a given threshold level. In contrast to the well-known horizontal barrier strategy, the threshold strategy can lead to a positive infinitehorizon survival probability, with reduced profit in terms of dividend payments. In this paper we extend several of these results to a Sparre Andersen model with generalized Erlang(n)-distributed interclaim times. Furthermore, we compare the performance of the threshold strategy to a linear dividend barrier model. In particular, (partial) integro-differential equations for the corresponding ruin probabilities and expected discounted dividend payments are provided for both models and explicitly solved for n = 2 and exponentially distributed claim amounts. Finally, the explicit solutions are used to identify parameter sets for which one strategy outperforms the other and vice versa.

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