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题目：Optimal Investment with Probability Distortion and Non-Concave Utility

报告人： Prof Zhenyu Cui（Stevens Institute of Technology，USA）

时间：11月27日(周二)下午 16：30-17：30

地点：致远楼101室

摘要：We consider the optimal investment problem with probability distortion (or weighting) and general non-concave utility functions (e.g. S-shape utility). This generalizes and nests some previous literature on mathematical behavior portfolio choice, in which either the probability distortion or the non-concave utility, but not both, is considered. We propose a novel relaxation method to solve it utilizing the concave envelope of the utility function and by relaxing the probability distortion effect through concavification. We establish sufficient conditions to guarantee the existence and uniqueness of the optimal solutions. We apply our method to solve some representative problems scattered in the literature in a unified fashion, and in particular to the hedge fund profit sharing problem with probability weighting.

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