School Inputs and Educational Outcomes in South Africa
研究南非种族隔离结束前教育投入（主要是师生比）与学校成果的关系，发现师生比对入学率、学业成绩和数学测试分数有显著影响。
We examine the relationship between educational inputs—primarily pupilteacher ratios—and school outcomes in South Africa immediately before the end of apartheid government. Black households were severely limited in their residential choice under apartheid and attended schools for which funding decisions were made centrally, by White-controlled entities over which they had no control. The allocations resulted in marked disparities in average class sizes. Controlling for household background variables, we find strong and significant effects of pupilteacher ratios on enrollment, on educational achievement, and on test scores for numeracy.