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Optimal dividend control for a generalized risk model with investment incomes and debit interest
Authors:Jinxia Zhu
Institution:1. School of Actuarial Studies, Australian School of Business , University of New South Wales , Sydney , NSW , Australia jinxia.zhu@unsw.edu.au
Abstract:This paper investigates dividend optimization of an insurance corporation under a more realistic model, which takes into consideration refinancing or capital injections. The model follows the compound Poisson framework with credit interest for positive reserve and debit interest for negative reserve. Ruin occurs when the reserve drops below the critical value. The company controls the dividend pay-out dynamically with the objective to maximize the expected total discounted dividends until ruin. We show that the optimal strategy, is a band strategy and it is optimal to pay no dividends when the reserve is negative.
Keywords:absolute ruin  dividend optimization  stochastic control  value function  viscosity solution
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