来源：《Journal of Public Economics》

作者：Qing Liu，Ruosi Lu，Stephen Teng Sun，Meng Zhang

吕若思 | 对外经济贸易大学千亿·体育（中国）官方网站副教授

Abstract：

We investigate the unintended impact of minimum wage increases on workplace safety. Using establishment-level data from the United States and a cohort-based stacked difference-in-differences design, we find that large increases in minimum wages have significant adverse effects on workplace safety. Our findings indicate that, on average, a large minimum wage increase results in a 4.6 percent increase in the total case rate. Event study estimates show that this adverse effect persists in the medium run. Furthermore, we find a more salient effect for firms more likely to be financially constrained or subject to a higher labor market rigidity in firing workers. We provide suggestive evidence that small minimum wage increases might reduce injury rates, highlighting the potential heterogeneity in the impact of minimum wage changes. We do not find evidence that capital-labor substitution could be behind the findings.

内容摘要：

论文研究了最低工资上涨对工作场所安全状况的冲击。论文对来自美国的企业级数据进行了基于群组的堆叠双重差分设计，发现最低工资的大幅增加对工作场所的安全状况有显著的不利影响。研究结果表明，平均而言，大幅提高最低工资会导致总病例率增加4.6%。事件研究法显示，这一不利影响在中期内持续存在。此外，论文发现，更可能受到财务约束或劳动力市场刚性更高的公司，其受到的影响更为显著。建议性证据表明，最低工资小幅上涨可能会降低受伤率，凸显了最低工资变化影响的潜在异质性。没有证据支持资本和劳动力的相互替代是上述研究结果背后的可能原因。

原文链接：

https://www.sciencedirect.com/science/article/abs/pii/S004727272400183X?via%3Dihub