mean-variance criterion造句

Secondly , this thesis evaluates some main theories and method about market risk measurement . such as mean - variance criterion of markowitz and risk decentralization principal , single - factor model , multifactor model , down - risk model , black - scholes model and var model based on the calculation of loss . it also discusses the suitable conditions and defects of every theory and method , and think that var is a more perfect method for risk measurement by comparison
其次，评价了有关市场风险度量的一些主要理论和方法，如markowitz的均值?方差准则和风险分散原则、 capm模型和风险的市场因素模型、单因素模型、多因素模型、 downside - risk 、期权定价理论和现代基于损失计量风险的var等风险度量理论，并讨论了各种风险度量方法的具体适用条件及相应的缺陷。
It's difficult to find mean-variance criterion in a sentence. 用mean-variance criterion造句挺难的