This book analyses the impact of Europeanization on domestic politics and the relationship between states and regions.

Introduction; 1. Europeanization and domestic institutional change: a historical institutionalist approach; 2. Reinforcing cooperative federalism: institutional adaption to Europeanization in Germany; 3. Transforming competitive regionalism: institutional adaptation to Europeanization in Spain; 4. Sharing versus shifting the costs of adaptation: the Europeanization of environmental policy-making in Germany and Spain; Conclusions.