Abstract:
The positive effect of a common currency on trade is empirically well-documented, but the reason of this effect remains unclear. In this paper, we argue that part of the currency union effect on trade is indirect. Currency unions foster foreign direct investment (FDI), which promotes trade due to complementary effects between trade and FDI. Using data for 22 OECD countries, we find that half of the euro impact on trade is driven by additional FDI.