National Industry Trade Shocks, Local Labour Markets, and Agglomeration Spillovers
利用国家产业贸易冲击，通过地方产业构成的差异，检验了不同产业间集聚溢出效应的异质性，发现可贸易产业的贸易冲击对就业有显著溢出，尤其在高技术产业和相似劳动力需求的产业间更强。
Abstract Using a broad set of national industry trade shocks, I employ a novel approach to estimate agglomeration effects by exploiting within industry variation in indirect exposure to the other local industries’ (national) trade shocks across local labour markets. This variation stems from differences in local industry composition and allows to test for the existence of heterogeneous agglomeration effects across industries. I find considerable employment spillovers from other tradable industries’ trade shocks and even stronger effects within the same broad sector. Spillovers are larger for industries employing similar workers and are triggered predominantly by shocks to high-technology industries.