从资产组合理论视角审视我国商业银行非利息收入的波动性

A Review of the Fluctuation of Non-interest Income of the Commocial Banks of Our Country from the Perspective of Portfolio Theory

利用资产组合理论对我国12家商业银行1999年-2006年期间的样本数据进行分析，发现非利息收入存在较强的波动现象。一旦多样化收益锐减或者消失，非利息收入较强的波动性必然加剧整体收入水平的波动幅度，不利于商业银行的稳健经营。

The authors use portfolio theory to analyze the sample data of twelve commocial banks of our country in the years of 1999 - 2006 and find that strong fluctuation exists in non - interest income. Once diversified benefits decrease or disappear, strong fluctuation of non - interest income is sure to intensify the fluctuation of the whole income, which is not helpful for the healthy operation of commercial banks.