In the traditional Markowitz investment portfolio theory, the mean-Variance analysis model is used to analyze the risk and yield and indeed introduce how investors match the risk and yield.

• 传统的Markowitz投资组合理论对风险收益的分析衡量，采用了均值-方差分析模型，模型结构简单，在一定程度上说明了投资者如何对风险-收益进行匹配。