对纯交换帕累托最优条件的再思考——兼与Andreu Mas-Colell,Michael D.Whinston和Jerry R.Green商榷

Reconsideration of the Pure Exchange Pareto Optimal Condition--and Discussion with Andreu Mas-Colell, Michael D.Whinston and Jerry R.Green

本文认为现有的纯交换帕累托最优条件存在问题,一则帕累托最优均衡点不是唯一的,原因是条件不充分;二则虽然使用提供曲线解决了均衡点的唯一性问题,但提供曲线本身是有缺陷的。本文认为,在信息完全的条件下,通过博奕分析方法,可得出纯交换帕累托最优均衡是唯一的,并对此完善了纯交换的帕累托最优条件。

In the article the author thinks that the existing Pareto optimal condition in pure exchange economy has following problems: at first the Pareto optimal equilibrium point is not exclusive because the condition is not sufficient; secondly even using the offer curve which can resolve the first problem above, the supply curve itself has defect. The author uses the 'game playing analytical method' to reach the conclusion that the pure exchange Pareto optimal equilibrium point is exclusive under the complete information condition and thus consummate Pareto optimal condition in pure exchange economy.