贝他系数(Beta)、波动值(Volatility)、夏普指数（Sharpe）是较常用的评估方式，前两种数值越大，代表风险越高，夏普指数越大，则代表风险承担得越值得。
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It uses the standards of average gaining index, standard deviation and Sharp index to count and evaluate and it shows that during the sample period, it’s reasonable to adopt the high-centered, aggressive style.
另外，基于研究的延续性，本文选用了平均收益率、标准差、夏普指数等指标评价比较以上样本基金的风险绩效，结果显示，在样本期间，采取混合型管理模式进行成长与价值复合型投资、较高集中度、激进的投资风格较为合理。
参考来源 - 我国证券投资基金投资风格研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，许多人开始使用夏普指数作为衡量工具。
That led to the widespread use of the Sharpe ratio as a measurement tool.
每月的夏普指数为（衡量风险报酬的指标）“真实可怕”的0.1（指数越高，风险调整表现就约好）。
The monthly Sharpe ratio that measures returns against risk was a “truly awful” 0.1 (the higher the ratio, the better the risk-adjusted performance).
该方法既克服了期望值-差法和夏普指数法的不足，又在一定程度上避免了效用函数构造的困难。
The new method has overcomed the shortcomings of the Expectation-Variance method and Sharpe's Index method, and avoids the inconvenience of constructing utility function to a certain extent as well.
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