Sorting, school performance and quality: Evidence from China

School choice reforms give talented students the option to sort out of low-performing schools but often leave disadvantaged students behind. This study shows how a Chinese city was successful in helping its low-performing schools to catch up by encouraging talented students to sort into these schools. The city identified eleven low-performing middle schools and guaranteed elite high school admission to their top ten-percent graduates. This study documents that the policy improved school performance by 0.19-0.26 standard deviations. Using data on lottery middle school assignment, I further test for potential mechanisms, including strategic sorting and improvement in school value-added.