The paper is devoted to an econometric analysis of learning foreign languages in all parts of the world. Our sample covers 193 countries and 13 important languages. Four factors significantly explain learning, two of which affect the broad decision to learn, while two concern as well the choice...

This paper reviews reassesses the methodology and principal findings of the "Rose effect", i.e. the trade effects of currency union, looking at both EMU and non-EMU currency unions. The consensus estimate suggests that the euro has already boosted intra-euro area trade by five to ten percent....

In this paper we test the well-known hypothesis of Obstfeld and Rogoff (2000) that trade costs are the key to explaining the so-called Feldstein-Horioka puzzle. Using a gravity framework in an intertemporal context, we provide strong support for the hypothesis and we reconcile our results with...