We show that tax competition in the EU is shaped by four interrelated institutional mechanisms: 1) Market integration, by reducing the transaction costs of cross-border tax arbitrage in the Single Market, 2) enlargement, by increasing the number and heterogeneity of states involved in intra-EU...

The paper analyzes the common assumption that the EU has little power over taxation. We find that the EU’s own taxing power is indeed narrowly circumscribed: its revenues have evolved from rather supranational beginnings in the 1950s towards an increasingly intergovernmental system. Based on a...