研究了风险资产价格具有Knight不确定下对冲基金管理者的最优投资决策问题.对冲基金管理者以获得的终端费用(包括管理费和业绩费)预期效用的最大化为目标,此时风险资产受G-布朗运动干扰.然后通过非线性期望下随机分析和随机动态规划方法,推导出带有特定边界条件值函数的G-HJB方程,得出相应的基金管理者最优投资组合策略.
This paper studies the strategy of the fund manager's portfolio as the volatility of the asset price has Knightian uncertainty.The hedge fund managers maximize the expected u~i'lity of the terminal fees including management fees.Performance fees and a risky asset are disturbed by a G-Brownian motion. Then the corresponding G-HJB (G-Hamilton-Jacobi-Bellman) equation of the value function with specif- ic boundary conditions is deduced through the stochastic calculus and the stochastic dynamic program- ming method under nonlinear expectations,and the corresponding optimal portfolio strategy of the fund manager is obtained.