Explaining Interstate Variation in Income Inequality
通过直接分析洛伦兹曲线而非不平等指数，发现家庭平均收入、教育年限标准差、人均教育支出和财产收入是预测各州收入不平等差异的稳健变量，其中人均教育支出较高的州不平等程度也较高。
This paper investigates interstate variation in income inequality. By avoiding inequality indices and focusing directly on the Lorenz curve, the authors provide a more general explanation of the differences in inequality. They find that mean family income, the standard deviation of years of schooling, per capita educational expenditure, and property income are robust predictors of inequality. Of particular interest is their finding that, ceteris paribus, higher per capita education expenditures tend to be associated with states that have income inequality which is greater than the U.S. average. Copyright 1992 by MIT Press.