TY - RPRT AU - Lafortune, Jeanne AU - Tessada, José AU - Lewis, Ethan Gatewood TI - People and Machines: A Look at the Evolving Relationship Between Capital and Skill in Manufacturing 1860-1930 Using Immigration Shocks PY - 2015/Jul/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 9217 UR - https://www.iza.org/index.php/publications/dp9217 AB - This paper estimates the elasticity of substitution between capital and skill using variation across U.S. counties in immigration-induced skill-mix changes between 1860 and 1930. We find that capital began as a q-complement for skilled and unskilled workers, and then dramatically increased its relative complementary with skilled workers around 1890. Simulations of a parametric production function calibrated to our estimates imply the level of capital-skill complementarity after 1890 likely allowed the U.S. economy to absorb the large wave of less-skilled immigration with a modest decline in less-skilled relative wages. This would not have been possible under the older production technology. KW - manufacturing KW - skill-biased technical change KW - capital-skill complementarity KW - immigration KW - Second Industrial Revolution ER -