Robust optimal excess-of-loss reinsurance and investment strategy for an insurer in a model with jumps

Danping Li, Yan Zeng and Hailiang Yang

Scandinavian Actuarial Journal, 2018, vol. 2018, issue 2, 145-171

Abstract: This paper considers a robust optimal excess-of-loss reinsurance-investment problem in a model with jumps for an ambiguity-averse insurer (AAI), who worries about ambiguity and aims to develop a robust optimal reinsurance-investment strategy. The AAI’s surplus process is assumed to follow a diffusion model, which is an approximation of the classical risk model. The AAI is allowed to purchase excess-of-loss reinsurance and invest her surplus in a risk-free asset and a risky asset whose price is described by a jump-diffusion model. Under the criterion for maximizing the expected exponential utility of terminal wealth, optimal strategy and optimal value function are derived by applying the stochastic dynamic programming approach. Our model and results extend some of the existing results in the literature, and the economic implications of our findings are illustrated. Numerical examples show that considering ambiguity and reinsurance brings utility enhancements.

Date: 2018
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Citations: View citations in EconPapers (8)

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DOI: 10.1080/03461238.2017.1309679

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