Local Productivity Spillovers
利用加拿大行政数据，研究企业在精细空间尺度上的收入和生产率溢出效应，发现企业周围75米内其他企业的平均质量每提高1%，自身收入和生产率平均提高0.024%。
Using Canadian administrative data, this paper presents evidence of revenue and productivity spillovers across firms at fine spatial scales. Accounting for the endogenous sorting of firms across space, we estimate an average elasticity of firm revenue and productivity with respect to the average quality of other firms within 75 meters of 0.024. We find scant evidence that the average firm benefits from being surrounded by a greater amount of economic activity at this spatial scale. Sorting of higher-quality firms into more productive locations and higher average and aggregate quality peer groups is salient in the data.