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The ruin time under the Sparre-Andersen dual model

Chen Yang and Kristina P. Sendova

Insurance: Mathematics and Economics, 2014, vol. 54, issue C, 28-40

Abstract: In this paper, we study the Sparre-Andersen dual risk model in which the times between positive gains are independently and identically distributed and have a generalized Erlang-n distribution. An important difference between this model and some other models such as the Erlang-n dual risk model is that the roots to the generalized Lundberg’s equation are not necessarily distinct. Hence, we derive an explicit expression for the Laplace transform of the ruin time, which involves multiple roots. Also, we apply our approach for obtaining the expected discounted dividends when the threshold-dividend strategy discussed by Ng (2009) is implemented under the Sparre-Andersen model with Erlang-n distribution of the inter-event times. In particular, we derive an explicit form of the expected discounted dividends when jump sizes are exponential.

Keywords: Generalized Erlang-n innovation times; Generalized Lundberg’s equation; Laplace transform; Multiple roots; Sparre-Andersen dual risk model (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:insuma:v:54:y:2014:i:c:p:28-40

DOI: 10.1016/j.insmatheco.2013.10.012

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Insurance: Mathematics and Economics is currently edited by R. Kaas, Hansjoerg Albrecher, M. J. Goovaerts and E. S. W. Shiu

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