Optimal dividend problems for Sparre Andersen risk model with bounded dividend rates

Yuying Liu, Zhaoyang Liu and Guoxin Liu

Scandinavian Actuarial Journal, 2020, vol. 2020, issue 2, 128-151

Abstract: This paper concerns the optimal dividend problem with bounded dividend rate for Sparre Andersen risk model. The analytic characterizations of admissible strategies and Markov strategies are given. We use the measure-valued generator theory to derive a measure-valued dynamic programming equation. The value function is proved to be of locally finite variation along the path, which belongs to the domain of the measure-valued generator. The verification theorem is proved without additional assumptions on the regularity of the value function. Actually, the value function may have jumps. Under certain conditions, the optimal strategy is presented as a Markov strategy with space-time band structure. We present an iterative algorithm to approximate the optimal value function and the optimal dividend strategy. As applications, some numerical examples are given.

Date: 2020
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DOI: 10.1080/03461238.2019.1655475

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