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Optimal excess-of-loss reinsurance and investment strategy under state-dependent utility function

GU AilingCHEN Shumin2,*   

  1. 1. School of Applied Mathematics, Guangdong University of Technology, Guangzhou 510006, China; 2. School of Management, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2015-09-24 Online:2016-03-15 Published:2016-03-15

Abstract:

This paper studies an optimal excess-of-loss reinsurance and investment problem for an insurer, and aims to maximize the expected exponential utility from her terminal wealth with a state-dependent utility function. It is assumed that the surplus of the insurer and the financial market are modulated by an observable continuous-time Markov chain. By applying stochastic control theory, the explicit expression of  optimal reinsurance-investment strategy is obtained. Finally, the impact of some parameters on the optimal strategy and optimal value function is given.

Key words: regime-switching, excess-of-loss reinsurance, state-dependent utility function, Hamilton-Jacobi-Bellman equation