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次优和非最优的一般分析:方法的创新
( 黄泽先曾令华湖南大学金融学院)
A general analysis on the second and non-Pareto optimality : innovation of method
摘要:本文运用理性预期思想和随机等价方法开拓性地研究了资源配置的效率,包括帕累托最优(无约束帕累托最优和有约束帕累托最优)和非帕累托最优;基本结论是,一个资源配置中所有商品价格波动的总方差等于零等价于在二阶条件具备下其处于帕累托最优状态,也等价于资源配置满足无约束条件下的帕累托最优条件或有约束条件下的帕累托次优条件;而总方差大于零等价于资源配置处于非帕累托最优状态;总方差与资源配置中期望价格的比值越小,则这个配置的效率越高,反之,则越低;最后,设计了一个“信息逐步披露的预期帕累托改进”模型讨论了非帕累托最优配置的改进途径及其政策含义。
关键词:最优条件次优条件最优配置非最优配置帕累托改进政策含义
Abstract: This paper developmentally researches on the efficiency of resource allocation by means of rational expectation theory and random equivalence method, the problems of which involves Pareto optimality, including unbound Pareto optimality and bound Pareto optimality, and Non-Pareto optimality; Its basic conclusions concern with that the aggregate variance of price fluctuation of the overall goods in the resource allocation is equivalent to its achieving at Pareto optimality, and is also equivalent to that the resource allocation satisfies Pareto optimality conditions under unbound conditions or Pareto’s second optimality conditions under bound conditions; More than zero of the aggregate variance is equivalent to that the resource is in non-Pareto optimality status; smaller is the ratio of the aggregate variance to the expectation price of the resource , lower is the efficiency of the resource allocation, vice versa; finally, this article works out a model of “ expected improving based on gradual exposure to information”, and discusses the road of Pareto improvement and the policy implication.
Key words: Optimal condition; Second optimal condition; Optimal allocation; Non-optimal allocation; Pareto improv; Policy implication
作者简介
曾令华, 湖南大学金融学院教授、博士生导师;
黄泽先,湖南大学金融学院博士生;
联系电话:**********, 0731-6586691 邮编:410079
通信地址:湖南大学金融学院博士生信箱联系人:黄泽先
E-mail:s02181019@
次优和非最优的一般分析:方法的创新

摘要:本文运用理性预期思想和随机等价方法开拓性地研究了资源配置的效率,包括帕累托最优(无约束帕累托最优和有约束帕累托最优有关概念参见:(第①卷) .:,-120
)和非帕累托最优;基本结论是,一个资源配置中所有商品价格波动的总方差