Smartphone Bans, Student Outcomes and Mental Health
基于行政和调查数据，研究发现中学智能手机禁令对教育和心理健康无平均影响，但显著减少女孩的心理健康护理使用和欺凌，提高女孩的GPA和学术轨道安置，尤其对弱势背景学生有益。
<h3>Abstract</h3> The rapid rise in smartphone use among youth has raised concerns about its effects on well-being and learning. Using administrative and survey data with an event-study design, I show that banning smartphones in middle schools has no average effect on education or mental health but masks important gender differences. Bans reduce psychological health care use among girls, lower bullying for both genders, and improve girls’ GPAs and academic track placement, especially among those from disadvantaged backgrounds. These results suggest smartphone bans can be a low-cost policy to improve outcomes, particularly for girls.