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Concentrating on the fall of the labor share

David Autor, David Dorn, Lawrence F. Katz, Christina Patterson and John Van Reenen


The recent fall of labor's share of GDP in numerous countries is well-documented, but its causes are poorly understood. We sketch a "superstar firm" model where industries are increasingly characterized by "winner take most" competition, leading a small number of highly profitable (and low labor share) firms to command growing market share. Building on Autor et al. (2017), we evaluate and confirm two core claims of the superstar firm hypothesis: the concentration of sales among firms within industries has risen across much of the private sector; and industries with larger increases in concentration exhibit a larger decline in labor's share.


1 May 2017


American Economic Review 107(5) , pp.180-185, 2017


DOI: 10.1257/aer.p20171102

https://www.zora.uzh.ch/id/eprint/143767/1/Concentrating_Dorn.pdf

This Journal article is published under the centre's Growth programme.