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arXiv 2103.04688math.OC
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具有随机微分效用的稳健消费投资组合Optimization

Robust Consumption Portfolio Optimization with Stochastic Differential Utility

Jiangyan Pu, Qi Zhang

摘要:

研究了一类具有Epstein-Zin型随机微分效用偏好的连续时间跨期消费和投资组合选择问题,投资者担心模型的错误设定,寻求稳健的决策规则.我们提供了一个验证定理,它制定了Hamilton-Jacobi-Bellman-Isaacs方程下的非利普希茨条件。然后,利用验证定理,给出了Heston模型的最优鲁棒消费和投资组合的显式封闭解。我们还比较了我们的鲁棒解决方案与非鲁棒解决方案,几个图中显示的比较符合我们的常识。

英文摘要:

This paper examines a continuous time intertemporal consumption and portfolio choice problem with a stochastic differential utility preference of Epstein-Zin type for a robust investor, who worries about model misspecification and seeks robust decision rules. We provide a verification theorem which formulates the Hamilton-Jacobi-Bellman-Isaacs equation under a non-Lipschitz condition. Then, with the verification theorem, the explicit closed-form optimal robust consumption and portfolio solutions to a Heston model are given. Also we compare our robust solutions with the non-robust ones, and the comparisons shown in a few figures coincide with our common sense.

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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