Lafortune, Jeanne; Tessada, José A.; Lewis, Ethan - 2015
immigration-induced skill-mix changes between 1860 and 1930. We find that capital began as a q-complement for skilled and …This paper estimates the elasticity of substitution between capital and skill using variation across U.S. counties in … parametric production function calibrated to our estimates imply the level of capital-skill complementarity after 1890 likely …