The Effect of Charter School Openings on Traditional Public Schools in Massachusetts and North Carolina
通过比较实际开办的特许学校与计划但未开办的选址，发现特许学校使传统公立学校入学率下降约5%，但对学生成绩、出勤率和停学率无显著影响。
The rapid expansion of charter schools has fueled concerns about their impact on traditional public schools. I estimate the effect of charter openings on traditional public schools in Massachusetts and North Carolina by comparing schools near actual charter sites to those near proposed sites that were never occupied. I find charter openings reduced public school enrollment by around 5 percent and reduced White enrollment in North Carolina. I find no impact on student achievement, and my 95 percent confidence intervals rule out effects larger than ± 0.05 standard deviations. I find no effects on attendance or suspensions.