We review the literature on firm-level drivers of labor market inequality. There is strong evidence from a variety of fields that standard measures of productivity – like output per worker or total factor productivity – vary substantially across firms, even within narrowly-defined...

We analyze the impact of information frictions on workers' wages, contributing to the literature that tested search theory, which has so far focused on labor market frictions in general and not specifically on information asymmetries. Using data for 16 countries from the European Social Survey...