This book examines differentiated integration in Europe, providing incisive analyses of domestic politics determinants – political conflict, party responses, citizens’ preferences and other supply and demand side elements.The four countries compared – Germany, Poland, Switzerland and the United Kingdom – afford rich diversity and offer broad empirical material available for cross-country analyses. Featuring interdisciplinary research, this book draws together recent developments in the evolution of European integration differentiation – its dynamics and determinants.This monograph will be of key interest to scholars and students of European integration, comparative politics, political psychology, international relations, and more broadly to European (area) studies.Chapter 5 of this book is freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution-Non-Commercial (CC-BY-NC) 4.0 license.