The Informal Sector Wage Gap: New Evidence Using Quantile Regressions on Panel Data

Olivier Bargain and Prudence Kwenda ()

CEDI Discussion Paper Series from Centre for Economic Development and Institutions(CEDI), Brunel University

Abstract: This paper provides new evidence on the wage gap bewteen informal and formal salary workers in South Africa, Brazil and Mexico. We use rich datasets that allow us to define informality in a relatively comparable fashion across countries. We compute precise wage differentials by accounting for taxes paid in the formal sector. For each country, we analyze how the sector wage gap varies within groups, bewteen groups and over time. To account for unobserved heterogeneity, we use large (unbalanved) panels to estimate fixed effects models at the mean and at different quantiles of the wage distribution. We find that unobserved heterogeneity explains a large part of the (conditional) wage gap. The remaining informal sector wage penalty is large in the lower part of the distribution but almost disappears at the top. The penalty primarily concerns young workers and is found to be procyclical. We carefully investigate the robustness of these results and discuss their policy implications as well as regularities across countries.

Pages: 25 pages
Date: 2009-06
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Citations: View citations in EconPapers (27)

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