This volume, now available in paperback, offers a comprehensive analysis of the agency phenomenon in the European Union. It takes stock of the emergence and development of EU agencies, providing insight into the characteristics as well as the consequences of the ongoing EU agencification process. The volume traces the varied roots of and routes to agency emergence and institutionalisation. It also analyses everyday decision-making processes within EU-level agencies, notably the management of such agencies, their role in the creation of network structures in European executive governance and in the implementation of EU legislation at the member state level, and the varied sources of agency accountability. The ambition of this volume is to offer an even-handed assessment and explanation of agency creation, design and evolution at the EU level. The volume is targeted to academics, post-graduate students and practitioners. Chapter authors include Deirdre Curtin, Renaud Dehousse, Morten Egeberg and Thomas Gehring.

Part I Introduction
1. Introducing the phenomenon of European Union agencies
Madalina Busuioc, Martijn Groenleer and Jarle Trondal
Part II The emergence and institutionalisation of EU agencies
2. Building executive power at the European level: on the role of EU-level agencies
Morten Egeberg, Maria Martens and Jarle Trondal
3. Executive power in the making: the establishment of the European Chemicals Agency
Maria Martens
4. Changing the EU's institutional landscape? The added value of an agency
Adriaan Schout
5. Hybrid agencification in the Area of Freedom, Security and Justice and its inherent tensions: the case of Frontex
Jorrit Rijpma
Part III Everyday decision-making in EU agencies: networks, management, accountability and implementation
6. Deliberative regulation through European agencies and other network structures?
Thomas Gehring
7. Wielders of supranational power? The administrative behaviour of the heads of European Union agencies
Madalina Busuioc and Martijn Groenleer
8. The parliamentary accountability of European Union and national agencies
Tobias Bach and Julia Fleischer
9. Catalysts of compliance? The role of European Union agencies in the implementation of European legislation in Poland and Bulgaria
Esther Versluis
Part IV Epilogue
10. EU agencies: Tipping the balance?
Deirdre Curtin and Renaud Dehousse

Editors

Jarle Trondal is Professor in public administration at University of Agder, and Professor at ARENA Centre for European Studies, University of Oslo Madalina Busuioc is Fellow in Risk and Regulation at the Centre for Analysis of Risk and Regulation (CARR), London School of Economics and Political Science Martijn Groenleer is Assistant Professor in public administration at the Faculty of Technology, Policy and Management, Delft University