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arXiv 1302.0134q-fin.PMmath.OC
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离散时间金融市场模型中非凹效用函数的最大化

Maximization of Non-Concave Utility Functions in Discrete-Time Financial Market Models

Laurence Carassus, Miklos Rasonyi

摘要:

研究了有限时间内离散金融市场模型中期望终端效用最大化问题。与标准设置相反,考虑了可能的非凹效用函数$U$,定义域为$\mathbb{R}$。简单的条件,保证存在一个最优策略的问题。特别是,$U$的渐近弹性起着决定性的作用:当它在$-\infty$严格大于$+\infty$时,可以证明存在。

英文摘要:

This paper investigates the problem of maximizing expected terminal utility in a (generically incomplete) discrete-time financial market model with finite time horizon. In contrast to the standard setting, a possibly non-concave utility function $U$ is considered, with domain of definition $\mathbb{R}$. Simple conditions are presented which guarantee the existence of an optimal strategy for the problem. In particular, the asymptotic elasticity of $U$ plays a decisive role: existence can be shown when it is strictly greater at $-\infty$ than at $+\infty$.

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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