Economias de aglomeração e heterogeneidade de trabalhador e firma na determinação de salários no Brasil

Abstract

The goal of this study is to identify the contribution of agglomeration effects and spatial sorting of worker and firm for the determination of individual and local wages in Brazilian urban agglomerations (labor market areas). The higher productivity of dense areas can be attributed to the concentration of more productive workers and firms: sorting. The first stage of model estimates the location effects as from a wage equation in a matched panel of workers and firms with microdata of RAIS (2002-2014). The second stage decomposes the location effects into local components and unobserved attributes of firms and workers. The identification strategy considers the fixed effects of workers and firms, an instrumental variable to density and satellite data on illumination to estimate the area in each local labour markets. The model of preference indicates a density effect on wages of 4.9%, much higher than the literature lower bound (3%).