Supranational Integration And National Reorganization

We explore the implications of European integration for scal decentralization in EU member states with a dataset on 21 OECD countries over the 1975-2000 period. The dierence-in-dierence methodology is used to establish causality. EU member states are classied as the treatment and non-EU OECD countries as the control group. The Maastricht treaty is interpreted as a quasi-experimental policy intervention that substantially advanced European integration. Our results suggest that tax decentralization has increased in EU countries after the signing of the Maastricht treaty. The treaty's eect on expenditure decentralization also seems to be positive, but is less clear-cut.