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首页> 外文期刊>Journal of industrial and management optimization >OPTIMAL REINSURANCE-INVESTMENT PROBLEM WITH DEPENDENT RISKS BASED ON LEGENDRE TRANSFORM
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OPTIMAL REINSURANCE-INVESTMENT PROBLEM WITH DEPENDENT RISKS BASED ON LEGENDRE TRANSFORM

机译:基于Legendre变换的依赖风险,最佳再保险 - 投资问题

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This paper investigates an optimal reinsurance-investment problem in relation to thinning dependent risks. The insurer's wealth process is described by a risk model with two dependent classes of insurance business. The insurer is allowed to purchase reinsurance and invest in one risk-free asset and one risky asset whose price follows CEV model. Our aim is to maximize the expected exponential utility of terminal wealth. Applying Legendre transform-dual technique along with stochastic control theory, we obtain the closed-form expression of optimal strategy. In addition, our wealth process will reduce to the classical Cramer-Lundberg (C-L) model when p = 0, in this case, we achieve the explicit expression of the optimal strategy for Hyperbolic Absolute Risk Aversion (HARA) utility by using Legendre transform. Finally, some numerical examples are presented to illustrate the impact of our model parameters (e.g., interest and volatility) on the optimal reinsurance-investment strategy.
机译:本文研究了与疏松依赖风险相关的最佳再保险投资问题。保险公司的财富进程是由一个风险模式描述了两个依赖的保险业务。保险公司允许购买再保险,投资一个无风险资产和一个风险资产,其价格遵循CEV模型。我们的目标是最大限度地提高终端财富的预期指数效用。应用Legendre变换 - 双技术以及随机控制理论,获取最优策略的封闭表达。此外,当P = 0时,我们的财富进程将减少到古典克拉梅 - 伦伯格(C-L)模型,在这种情况下,我们通过使用Legendre变换来实现双曲绝对风险厌恶(Hara)实用程序的最佳策略的显式表达。最后,提出了一些数值示例以说明我们的模型参数(例如,兴趣和波动性)对最佳再保险 - 投资策略的影响。

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