Productivity Spillovers Across Firms through Worker Mobility
利用丹麦制造业的匹配企业-工人数据，研究发现雇佣来自高生产率企业的工人后，一年后企业生产率提升，平均每年增长0.35%，且效应随工人教育、任期和技能水平增加而持续多年。
Using matched firm-worker data from Danish manufacturing, we observe firm-to-firm worker movements and find that firms that hired workers from more productive firms experience productivity gains one year after the hiring. The productivity gains associated with hiring from more productive firms are equivalent to 0.35 percent per year for an average firm. Surviving a variety of statistical controls, these gains increase with education, tenure, and skill level of new hires, persist for several years after the hiring was done, and remain broadly similar for different industries and measures of productivity. Competing explanations for these gains, knowledge spillovers in particular, are discussed.