A Geometric Approach to the Stolper-Samuelson Theorem
给出了n×n分配份额矩阵满足斯托尔珀-萨缪尔森准则的两个新等价条件，并以n=4为例，利用重心坐标进行几何刻画。
This paper presents a pair of new equivalent conditions for a given n x n matrix of distributive shares to satisfy the Stolper-Samuelson criterion. Specifying n as four and making use of barycentric coordinates, the author gives geometric characterization to the equivalent conditions. Copyright 1997 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.