本文利用均值一方差模型,分析了非线性交易成本下的共同资金投资的有效边界和在一般的效用函数下讨论了最优投资组合和最大效用,其中只考虑风险资产的总投资比例对交易成本的影响.
The paper examines the efficient frontier of the mutual funds with nonlinear transaction costs in a mean-variance model. Meanwhile,we discuss the optimal portfolio and the maximal utility under the general utility functions,in the case only thinks of the effect of risky assets' investment-proportion to the transaction costs.