TY - JOUR AB - 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 both children while the spillover is up to 30% of the target child effect size. The effects are particularly pronounced in families where one of the children is disabled, for boys, and in immigrant families. Candidate mechanisms include improved classroom inputs and parental school choice. AU - Figlio, David AU - Karbownik, Krzysztof AU - Özek, Umut PY - 2023 ST - Sibling Spillovers May Enhance the Efficacy of Targeted School Policies TI - Sibling Spillovers May Enhance the Efficacy of Targeted School Policies UR - http://www.edworkingpapers.com/ai23-801 ER -