The Eurozone is not a mere currency area. It is also a unique polity whose actors span multiple levels (supranational, national, regional, sectoral) and pursue overlapping economic and political objectives. Current thinking on the Eurozone relies on received categories that struggle to capture...

Two seemingly unconnected empirical results suggest an intriguing mechanism. First, economic integration helps harmonize prices internationally, with trade being the primary channel (Rogoff 1996, Goldberg and Knetter 1997). Second, monetary union may greatly increase the amount of trade among...