TY - RPRT AU - Shi, Ying AU - Villarroel, Francisco TI - The Consequences of Cellphone Restrictions in Classrooms PY - 2026/Feb/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 18426 UR - https://www.iza.org/index.php/publications/dp18426 AB - Schools are increasingly restricting cellphones worldwide amid concerns about achievement and mental health, yet causal evidence on school-level bans remains mixed. We examine cellphone restrictions in Chile before the pandemic, where teacher discretion over cellphone use generated classroom-level variation. Using administrative and survey data, we exploit cross-cohort, within-teacher, and within-student cross-subject variation in cellphone policies. Restrictions modestly reduce eighth graders’ in-class recreational cellphone use but not for tenth graders, suggesting uneven compliance. They also lower eighth graders’ perceived academic capability without affecting test scores. Our findings best extrapolate to decentralized policy contexts and contexts with uneven enforcement within schools. KW - cellphone bans KW - student outcomes ER -