The CDC reports that the association between bullying and suicides among teenagers has generated “concern, even panic,” but policies aimed at combatting bullying have received little attention from researchers. Using a difference-in-differences estimation strategy, we find that state-level anti-bullying laws (ABLs) reduce bullying victimization, depression, and suicidal ideation, with the largest estimated effects for female teenagers and teenagers who identify as lesbian, gay, bisexual, or questioning. In addition, ABLs are associated with a 13 to 16 percent reduction in the suicide rate of female 14- through 18-year-olds. Event-study analyses and falsification tests provide evidence that these estimates can be interpreted causally.

中文翻译：

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青少年的反欺凌法和自杀行为

疾病预防控制中心报告说，青少年欺凌和自杀之间的关联已经引起了“担忧，甚至恐慌”，但旨在打击欺凌的政策几乎没有受到研究人员的关注。使用差异中的差异估计策略，我们发现州级反欺凌法 (ABL) 减少了欺凌受害、抑郁和自杀意念，对女性青少年和认定为女同性恋、男同性恋、双性恋，或质疑。此外，ABL 可使 14 至 18 岁女性的自杀率降低 13% 至 16%。事件研究分析和证伪测试提供了这些估计可以因果解释的证据。