Public policies often target individuals but within-family externalities of such interventions are understudied. Using a regression discontinuity design, we document how a third grade retention policy affects both the target children and their younger siblings. The policy improves test scores of...

School systems around the world use achievement tests to assign students to schools, classes, and instructional resources, including remediation. Using a regression discontinuity design, we study a Florida policy that places middle school students who score below a proficiency cutoff into...