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arXiv 2109.13787math.OC
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带跳信号的Merton最优投资问题

Merton's optimal investment problem with jump signals

Peter Bank, Laura Körber

摘要:

本文提出了一个新的框架默顿的最优投资问题,使用迈耶$σ$ -字段的理论,允许信号,可能警告投资者即将发生的跳跃。由于战略不再是可预测的,必须采取一些措施,通过随机整合来正确定义财富动态。通过动态规划的方法,我们明确地解决了电力公司的问题。例如,在一个高斯跳跃的案例研究中,我们发现,即使在出现温和的积极信号后,投资者也可能宁愿完全撤资。我们的设置还允许我们调查,如果有机会,提高信号质量或数量是否更好,以及从任何一种选择中可以产生多少额外价值。

英文摘要:

This paper presents a new framework for Merton's optimal investment problem which uses the theory of Meyer $σ$-fields to allow for signals that possibly warn the investor about impending jumps. With strategies no longer predictable, some care has to be taken to properly define wealth dynamics through stochastic integration. By means of dynamic programming, we solve the problem explicitly for power utilities. In a case study with Gaussian jumps, we find, for instance, that an investor may prefer to disinvest completely even after a mildly positive signal. Our setting also allows us to investigate whether, given the chance, it is better to improve signal quality or quantity and how much extra value can be generated from either choice.

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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