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位置-尺度分布族中均值-方差准则与期望效用理论的一致性
引用本文:马雪雅,文平,齐晓波. 位置-尺度分布族中均值-方差准则与期望效用理论的一致性[J]. 数学的实践与认识, 2009, 39(2)
作者姓名:马雪雅  文平  齐晓波
作者单位:1. 新疆昌吉学院,数学系,新疆,昌吉,831100
2. 新疆财经大学,应用数学系,新疆,乌鲁木齐,830012
基金项目:新疆自治区高校科研计划立项重点项目 
摘    要:
证明了当决策集为位置-尺度分布族时,期望效用理论与均值-方差准则是一致的.从而就可以将马克威茨的均值-方差准则中的正态假设减弱为位置-尺度分布族.这不仅扩大了均值-方差准则的应用范围,而且巩固了组合投资理论与资本资产定价理论的基础.

关 键 词:期望效用  随机占优  均值-方差  位置-尺度分布族

The Consistency of Expected Utility Theory and Mean-Variance Rule When The Decision Set is Comprising By The Location-Scale Family
MA Xue-ya,WEN Ping,QI Xiao-bo. The Consistency of Expected Utility Theory and Mean-Variance Rule When The Decision Set is Comprising By The Location-Scale Family[J]. Mathematics in Practice and Theory, 2009, 39(2)
Authors:MA Xue-ya  WEN Ping  QI Xiao-bo
Abstract:
This paper proves that mean-variance rule of Markowitz is consistent with expected utility theory and stochastic dominance when decision set is comprising by the location-scale family,so we can change the normal distribution hypothesis of mean-variance rule to the location-scale family hypothesis.This enlarge the application scope of mean-variance rule of Markowitz.
Keywords:expected utility  stochastic dominance  mean-variance  location-scale family
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