Robust optimal consumption-investment strategy with non-exponential discounting

Robust optimal consumption-investment strategy with non-exponential discounting
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稳健的非指数贴现最优消费投资策略

DOI:
10.3934/jimo.2018147
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发表时间:
2020
影响因子:
1.3
通讯作者:
Yan Zeng
Yan Zeng
中科院分区:
工程技术4区
文献类型:
--
作者:
Jiaqin Wei;Danping Li;Yan Zeng

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本文在鲁棒框架下,将已有的动态消费-投资问题推广到具有更一般折扣函数的情况。决策者厌恶模棱两可,并将她的财富投资于无风险资产和风险资产。由于我们的模型中考虑了非指数折扣,所以我们的优化问题是时间不一致的。通过求解扩展的Hamilton-Jacobi-Bellman方程,明确地导出了幂函数和对数效用函数下成熟投资者和幼稚投资者的最优消费-投资策略。我们的模型和结果扩展了一些已有的模型和结果,并推导出一些有趣的现象。
This paper extends the existing dynamic consumption-investment problem to the case with more general discount functions under the robust framework. The decision-maker is ambiguity-averse and invests her wealth in a risk-free asset and a risky asset. Since non-exponential discounting is considered in our model, our optimization problem is time inconsistent. By solving the extended Hamilton-Jacobi-Bellman equations, the corresponding optimal consumption-investment strategies for sophisticated and naive investors under power and logarithmic utility functions are derived explicitly. Our model and results extend some existing ones and derive some interesting phenomena.
DOI: 10.1093/rfs/hhh003
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影响因子: 8.2
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