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arXiv 2005.01904q-fin.PMq-fin.MF
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连续时间均值-方差模型的Bellman型策略

Bellman type strategy for the continuous time mean-variance model

Shuzhen Yang

摘要:

为了研究连续时间均值-方差模型的时间相容最优策略,我们提出了一种新的方法来建立贝尔曼原理。基于这种新方法,我们得到了一个时间一致的动态最优策略,不同于预先承诺和博弈论的策略。与已有的连续时间均值-方差模型的结果比较表明,我们的方法具有一些优点。给出了动态最优策略和最优财富的显式解。当初始时刻给出动态最优策略时,在随后的投资时间区间内不改变动态最优策略。

英文摘要:

To investigate a time-consistent optimal strategy for the continuous time mean-variance model, we develop a new method to establish the Bellman principle. Based on this new method, we obtain a time-consistent dynamic optimal strategy that differs from the pre-committed and game-theoretic strategies. A comparison with the existing results on the continuous time mean-variance model shows that our method has several advantages. The explicit solutions of the dynamic optimal strategy and optimal wealth are given. When the dynamic optimal strategy is given at the initial time, we do not change it in the following investment time interval.

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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