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通勤条件改善如何影响员工?来自自然实验的证据

How Does Improvement in Commuting Affect Employees? Evidence from a Natural Experiment
Review of Economics and Statistics · 2024 · Yao Lu、Xinzheng Shi、Jagadeesh Sivadasan、Zhufeng Xu

中文摘要

我们收集了北京两家公司为期两年、覆盖某地铁站开通前后的员工月度面板数据;该地铁站的开通显著改善了部分员工的公共交通通勤条件。我们发现,相对于未受影响的同事,受影响员工的奖金出现了显著的双重差分增长(相当于标准差12.6%),而奖金与员工层面的绩效指标高度相关。我们没有发现证据表明,绩效改善源于受影响员工在工作场所投入了额外时间。我们发现了提示性证据:离职率相对下降,这与受影响员工效用提高相一致。

Abstract

We collect worker month-level panel data from two companies in Beijing for a two-year period before and after the opening of a nearby subway station, which significantly improved public transportation commutes for some workers. We find a significant difference-in-differences increase (12.6% of the standard deviation) in bonus pay, which is strongly correlated to worker-level performance measures, for affected workers relative to unaffected coworkers. We find no evidence that the improved performance is a result of affected workers spending extra time at the workplace. We find suggestive evidence for a relative decline in turnover, consistent with a gain in utility for affected workers.
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