Factor Components, Population Subgroups and the Computation of the Gini Index of Inequality
提出一种基于矩阵代数的简单技术，用于计算基尼指数，并按收入来源的因子成分、收入范围分组和人口子群进行分解，帮助研究者分析不平等来源。
A simple technique based on matrix algebra is proposed to compute the Gini Index of Inequality; to obtain its decomposition by factor components when detailed data on income sources are available; to derive a breakdown of the inequality into, within, and between classes inequality when the income units are grouped by income range; and to compute the contribution of the within and between groups inequality, as well as that of some interaction term, when the data are classified by population subgroups. Copyright 1989 by MIT Press.