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This paper characterizes the optimal risk-taking strategies of mutual fund managers competing in multi-period winner-take-all tournaments. With competition among mutual funds, every fund begins by taking maximum risk. In the final period, all funds continue to take maximum risk except possibly...
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We study a dynamic mean-variance portfolio optimization problem under the reinforcement learning framework, where an entropy regularizer is introduced to induce exploration. Due to the time-inconsistency involved in a mean-variance criterion, we aim to learn an equilibrium strategy. Under an...
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Evolutionary Finance focuses on questions of "survival and extinction" of investment strategies (portfolio rules) in … interaction of portfolio rules of competing market participants. A comprehensive theory of evolutionary dynamics of this kind has … the theory to a class of models with short selling and endogenous asset supply …
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