Is Labor Mobility a Channel for Spillovers from Multinationals? Evidence from Norwegian Manufacturing
研究了挪威制造业中非跨国公司雇佣有跨国公司经验的工人是否提升生产率，发现这些工人对工厂的贡献比无经验工人高20%，且私人回报低于生产率效应，表明存在真正的知识外部性。
Does hiring workers with experience from multinationals (MNEs) increase productivity in non-MNEs? Tracing worker flows between plants in Norwegian manufacturing during the 1990s, I find a positive correlation between the share of workers with MNE experience in non-MNEs and the productivity of these plants. Workers with MNE experience contribute 20%% more to the productivity of their plant than workers without such experience, even after controlling for differences in unobservable worker characteristics. The private return to mobility is smaller than the productivity effect at the plant level, which suggests that labor mobility from MNEs to non-MNEs represents a true knowledge externality. © 2011 The President and Fellows of Harvard College and the Massachusetts Institute of Technology.