The book presents a theoretically informed typology of modes of governance which is tested in a careful selection of comparative country and policy studies. At the core is the question whether the European Union is destined to a network type of governance and whether and how this type of governance will be translated into the member states. The individual chapters subject the governing patterns at European and national level to empirical scrutiny. Drawing on recent research findings in different issue areas - including monetary union, social affairs, environment, genetic engineering and market liberalisation in transport, banking, energy, professional services - the contributions highlight the impact of the European activities on policy-making process in the member states.