Immigration, Wages and Employment under Informal Labor Markets
This paper studies the labor market impacts of a massive inflow of Venezuelans in Colombia. By comparing areas that received different shares of migrants, I find a negative effect on wages and on local employment for natives. The negative wage effect is driven by a large drop of wages in the informal sector, where migrants are mostly employed, while the negative employment effect is driven by a reduction of employment in the formal sector, where the minimum wage is binding. To explain these results, I develop a model in which firms hire formal and informal workers with different costs. If these workers have a high degree of substitutability, and wages for formal workers are rigid, firms reallocate formal to informal employment as a response to lower informal wages. In settings with informal labor markets migration can therefore lead to asymmetric employment and wage effects across the informal and formal sectors.