Introduction to ‘Economic and Monetary Union at Twenty: A Stocktaking of a Tumultuous Second decade’

This contribution discusses the two main asymmetries of European Economic and Monetary Union (EMU) as they developed over the past two decades since the launch of the Single Currency. From the outset, EMU involved asymmetric degrees of integration in the area of ‘economic’ union (less centralised governance) versus ‘monetary’ union (more supranational governance). With the outbreak of the Sovereign Debt Crisis in 2010, the regime-shaping relevance of a second asymmetry emerged: one roughly between the member states of the Euro Area ‘core’ and those in the ‘periphery’. Each of the two asymmetries have created a range of challenges—institutional, policy and political — that undermine the stability and sustainability of the EMU project.