We examine the heterogeneous impacts of foreign language use at work on earnings of both native-born workers and foreign-born workers, using a longitudinal survey, viz. the European Community Household Panel (ECHP) running from 1994 to 2001. Our findings are the following. First, for native-born...

Using a repeated cross-section of more than 258,000 residents of 39 European countries covering the period from 1990 to 2012, I study the impact of knowing different foreign languages on income and (for the first time) on unemployment. To help identify causal effects, I also employ a novel...