The link between regional integration and intra-industry trade (IIT) has been under scrutiny since it has been first suggested by the European integration process. However, the lack of reliable data and the difficulty to find a robust model for IIT made this relationship difficult to prove. This...

We improve the study of the effects of a Currency Union on trade. Using data on French exports at the firm level, we compute an intensive and extensive margins of French exports - with a variety dimension - over the period 1998-2003. Estimation results indicate that nominal exchange rate...