For centuries and even millenia, street lighting has been among the most ubiquitous capital investments that societies have made in public safety. Recent research by Chalfin et al. (2021)—the first randomized experiment that studies the effect of street lighting on public safety—demonstrated that a tactical street lighting intervention in New York City's public housing developments led to a 36% reduction in serious criminal activity during nighttime hours in the 6 months after the new lights were rolled out. But do the effects endure? In this study, we examine the longer-term effects of the same street lighting intervention using 3 years of outcome data. We show that the effects of the lighting intervention persist over time. Critically, the intervention reduced crime without eventually leading to a larger number of arrests.

中文翻译：

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威慑能持久吗？来自街道照明随机实验的长期证据

几个世纪甚至几千年来，街道照明一直是社会在公共安全方面进行的最普遍的资本投资之一。Chalfin 等人最近的研究。(2021)——第一个研究街道照明对公共安全影响的随机实验——证明纽约市公共住房开发中的战术性街道照明干预导致 6 个月内夜间的严重犯罪活动减少了 36%新灯推出后。但效果会持续吗？在这项研究中，我们使用 3 年的结果数据检查了相同街道照明干预的长期影响。我们表明，照明干预的效果会随着时间的推移而持续存在。至关重要的是，干预减少了犯罪，但最终并未导致更多人被捕。