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arXiv 1807.08982math.PRq-fin.CPq-fin.GN
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L{é}vy切换模型的效用最大化

Utility maximization for L{é}vy switching models

Lioudmila Vostrikova, Yuchao Dong

摘要:

利用对偶方法研究了有限时间区间上L é vy切换过程的HARA效用最大化问题。给出了初始扩大滤过中所有f-散度极小鞅测度的描述,它们涉及Hellinger和Kulback-Leibler过程的Radon-Nikodym密度的表达式,渐进扩大滤过中最大化HARA效用的最优策略的表达式以及相应的最大期望效用的值.最后给出了布朗转换模型的例子,并对结果进行了金融解释。

英文摘要:

This article is devoted to the maximisation of HARA utilities of L{é}vy switching process on finite time interval via dual method. We give the description of all f-divergence minimal martingale measures in initially enlarged filtration, the expression of their Radon-Nikodym densities involving Hellinger and Kulback-Leibler processes, the expressions of the optimal strategies in progressively enlarged filtration for the maximisation of HARA utilities as well as the values of the corresponding maximal expected utilities. The example of Brownian switching model is presented to give the financial interpretation of the results.

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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