European Studies have focused for a long time on analysing and explaining the process of European integration. However, scholars have recently started asking to which extent this process feeds back into the Member States and results in significant domestic change. Several studies show that the transfer of national political and economic competencies to the EU changes domestic institutions, policies and policy- making processes in a sustainable way. The "new regionalism", the "disempowerment of parliaments" or the "end of corporatism" are only some key words highlighting this effect of European integration. Some scholars argue that due to the principle of conditionality applied by the European Union (EU), EU-induced domestic change is much more profound in Central and Eastern Europe than in the "old" Western European member states. In the framework of this course, we will analyse the level and scope of domestic change resulting from European integration that has actually also occurred in Western Europe, and explain it by drawing on institutionalist theories. Special emphasis will be placed on the question to which extent domestic change differs between Western European member states and between policies and how we might account for this variation.