arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.14359math.OCq-fin.PM
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奈特不可逆投资问题

A Knightian Irreversible Investment Problem

Giorgio Ferrari, Hanwu Li, Frank Riedel

摘要:

本文研究了一类不确定性下的不可逆投资问题。在一个一般的框架下,通过一组多个先验模型来描述最优投资方案的不确定性,证明了最优投资方案的存在唯一性,并得到了最优性的充要条件.这使我们能够构建最优策略的解决方案,以随机向后方程在最坏的情况下。在一个时间齐次的设置-风险是由一个几何布朗运动和Boghtian不确定性是通过一个所谓的“k-无知”实现-我们能够提供的最佳不可逆投资计划的显式形式。

英文摘要:

In this paper, we study an irreversible investment problem under Knightian uncertainty. In a general framework, in which Knightian uncertainty is modeled through a set of multiple priors, we prove existence and uniqueness of the optimal investment plan, and derive necessary and sufficient conditions for optimality. This allows us to construct the optimal policy in terms of the solution to a stochastic backward equation under the worst-case scenario. In a time-homogeneous setting - where risk is driven by a geometric Brownian motion and Knightian uncertainty is realized through a so-called "k-ignorance" - we are able to provide the explicit form of the optimal irreversible investment plan.

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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