This paper documents that growth in the extensive margin is on average lower in the agricultural sector than in other activities. I introduce this new fact into a simple model of trade with expanding-variety growth, to show its relevance for regions specialized in the lagging sector....

We use French employer-employee data to reassess the wage gap between native and foreign workers. We find that the wage gap varies with the export intensity of the firm and the occupation of the worker. A model with heterogeneous firms and workers shows that our findings are consistent with...