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 these constitutive features. This book addresses this analytical deficit by proposing a new approach to the political economy of the Eurozone, which captures economic and political interdependencies across different levels of decision making and sheds light on largely unexplored problems. The book explores the opportunities afforded by the structure of the Eurozone, and lays the foundations of a political economy that poses new questions and requires new answers. It provides categories that are firmly grounded in the existing configuration of the Eurozone, but are a precondition for overcoming the status quo in analysis and policy.