Monetary Integration, Soft Budget Constraints, and the EMU Sovereign Debt Crises

One possible explanation for the European sovereign debt crises is that the European Economic and Monetary Union (EMU) gave rise to consolidation fatigue or even deliberate over-borrowing. This paper explores the validity of this explanation by studying how three decisive stages in the history of the EMU affected public borrowing in EU member states: the signing of the Maastricht treaty in 1992, the introduction of the Euro in 1999, and the suspension of the SGP in late 2003. The methodology relies on difference-in-difference regressions covering 26 OECD countries over the 1975-2009 period. The findings indicate that the first two 'treatments' reduced deficits especially in traditional high-deficit countries. In contrast, the watering down of the original SGP encouraged borrowing in countries which traditionally have had high deficits.