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Optimal investment-reinsurance strategy in the correlated insurance and financial markets

  • * Corresponding author: Xiaoyu Xing

    * Corresponding author: Xiaoyu Xing 

The first author is supported by NSF grant No.12071107 and State Scholarship Fund 201906705011

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  • Within the correlated insurance and financial markets, we consider the optimal reinsurance and asset allocation strategies. In this paper, the risk asset is assumed to follow a general continuous diffusion process driven by a Brownian motion, which correlates to the insurer's surplus process. We propose a novel approach to derive the optimal investment-reinsurance strategy and value function for an exponential utility function. To illustrate this, we show how to derive the explicit closed strategies and value functions when the risk asset is the CEV model, 3/2 model and Merton's IR model respectively.

    Mathematics Subject Classification: Primary: 97M30; Secondary: 93E20.


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  • Figure 1.  Effect of $ \beta $ on the optimal strategy $ \pi_s^*(t) $

    Figure 2.  Effect of $ \beta_0 $ on the optimal strategy $ \pi_s^*(t) $, when $ \rho=1 $

    Figure 3.  Effect of $ \beta_0 $ on the optimal strategy $ \pi_s^*(t) $, when $ \rho=-1 $

    Figure 4.  Effect of $ \kappa $ on the optimal strategy $ \pi_s^*(t) $

    Figure 5.  Effect of $ \delta $ on the optimal strategy $ \pi_s^*(t) $

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