Shift-share instruments and the impact of immigration / David A. Jaeger (CUNY Graduate Center, University of Cologne, IZA and NBER), Joakim Ruist (University of Gothenburg), Jan Stuhler (Universidad Carlos III de Madrid, IZA, CEPR and CReAM) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, January 2018
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