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arXiv 2006.07684math.OCmath.PRq-fin.MF
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平均场指数效用博弈的概率分析

Mean Field Exponential Utility Game: A Probabilistic Approach

Guanxing Fu, Xizhi Su, Chao Zhou

摘要:

本文研究了一个$N$ -局中人和一个平均场指数效用对策。每个参与者管理两只股票;一只由单独的冲击驱动,另一只由共同的冲击驱动。此外,每个参与者不仅关心自己的终端财富,还关心竞争对手的相对表现。我们使用概率的方法来研究这两个游戏。我们证明了$N$ -玩家博弈和平均场博弈的唯一均衡可以分别用一个新的具有二次增长的多维FBBDEs和一个新的平均场FBSDES来表征。建立了适定性结果和收敛性结果。

英文摘要:

We study an $N$-player and a mean field exponential utility game. Each player manages two stocks; one is driven by an individual shock and the other is driven by a common shock. Moreover, each player is concerned not only with her own terminal wealth but also with the relative performance of her competitors. We use the probabilistic approach to study these two games. We show the unique equilibrium of the $N$-player game and the mean field game can be characterized by a novel multi-dimensional FBSDE with quadratic growth and a novel mean-field FBSDEs, respectively. The well-posedness result and the convergence result are established.

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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