Educational Expansion and Schooling Inequality: International Evidence and Some Implications
基于约100个国家的近期数据，发现随着平均受教育年限增加，教育不平等先上升后下降，拐点在约7年处，对教育政策和收入不平等研究有启示。
Fairly recent data for about 100 countries indicate that as the average level of schooling increases, educational inequality first increases, and, after reaching a peak, starts declining in later phases of educational expansion. The turning point occurs when average schooling is about seven years. The observed empirical generalization, which seems quite robust, appears to have important implications for educational and distributional policies and for research on the linkage between education and income inequality.