arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.11301math.OCq-fin.PM
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具有学习的鲁棒最优投资与再保险问题

Robust Optimal Investment and Reinsurance Problems with Learning

Nicole Bäuerle, Gregor Leimcke

AI总结:

本文研究参数部分未知且可学习的最优投资与再保险问题,利用广义HJB方程和Clarke梯度求解,显式给出投资策略,并通过比较论证给出再保险策略的界。

摘要:

本文考虑了一个具有部分未知模型参数且允许学习的最优投资与再保险问题。该模型包含多个业务线及其之间的相关性。目标是最大化终端财富的期望指数效用,这被证明蕴含一种鲁棒方法。我们利用广义HJB方程求解该问题,其中导数被广义Clarke梯度所替代。最优投资策略可以显式确定,最优再保险策略则以一个方程的解的形式给出。由于该方程难以求解,我们通过比较论证推导出最优再保险策略的界。

英文摘要:

In this paper we consider an optimal investment and reinsurance problem with partially unknown model parameters which are allowed to be learned. The model includes multiple business lines and dependence between them. The aim is to maximize the expected exponential utility of terminal wealth which is shown to imply a robust approach. We can solve this problem using a generalized HJB equation where derivatives are replaced by generalized Clarke gradients. The optimal investment strategy can be determined explicitly and the optimal reinsurance strategy is given in terms of the solution of an equation. Since this equation is hard to solve, we derive bounds for the optimal reinsurance strategy via comparison arguments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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