Acknowledgements

This research was supported by the Spanish Ministry of Economy and Competitiveness (Reference CSO2012-31443).

References

Behn, R.D. (2001) Rethinking Democratic Accountability (Washington DC: The Brookings Institution).

Borzel, T. A. (2005) Mind the Gap! European Integration between Level and Scope. Journal of European Public Policy, 12(2), 37-41.

Bovens, M. (2007) Analysing and Assessing Accountability: A Conceptual Framework. European Law Journal, 13(4), 447-468.

Bovens, M. (2010) Two Concepts of Accountability: Accountability as a Virtue and as a Mechanism. West European Politics, 33(5), 946-967.

Burns, C. (2013) Consensus and Compromise Become Ordinary - But at What Cost? A Critical Analysis of the Impact of the Changing Norms of Codecision upon European Parliament Committees. Journal of European Public Policy, 20(7), 988-1005.

Burns, C., Rasmussen, A. and Reh, C. (2013) Legislative Codecision and Its Impact on the Political System of the European Union. Journal of European Public Policy, 20(7), 941-952.

Busuioc, M. (2013) European Agencies: Law and Practices of Accountability (Oxford: Oxford University Press).

Calvert, R., McCubbins, M. D. and Weingast, B. R. (1989) A Theory of Political Control and Agency Discretion. American Journal of Political Science, 33(3), 588-611.

Chiti, E. (2009) An Important Part of the EU's Institutional Machinery: Features, Problems and Perspectives of European Agencies. Common Market Law Review, 46, 1395-1442.

Christensen, J. G. and Nielsen, V. L. (2010) Administrative Capacity, Structural Choice and the Creation of EU Agencies. Journal of European Public Policy, 17(2), 176-204.

Costello, R. and Thomson, R. (2013) The Distribution of Power among EU Institutions: Who Wins under Codecision and Why? Journal of European Public Policy, 20(7), 1025-1039.

Crombez, C. (2003) The Democratic Deficit in the European Union: Much Ado about Nothing? European Union Politics, 4(1), 101-120.

Crombez, C., Steunenberg, B. and Corbett, R. (2000) Understanding the EU Legislative Process: Political Scientists' and Practitioners' Perspectives. European Union Politics, 1(3), 363-381.

Curtin, D. (2007) Holding (Quasi-) Autonomous EU Administrative Actors to Public Account. European Law Journal, 13(4), 523-541.

Dehousse, R. (2008) Delegation of Powers in the European Union: The Need for a Multi-Principals Model. West European Politics, 31(4), 789-805.

Hanretty, C. and Koop, C. (2013) Shall the Law Set them Free? The Formal and Actual Independence of Regulatory Agencies. Regulation & Governance, 7(2), 195-214.

Egeberg, M. and Trondal, J. (2009) Political Leadership and Bureaucratic Autonomy: Effects of Agencification. Governance, 22(4), 673-688.

Egeberg, M. and Trondal, J. (2011) EU-Level Agencies: New Executive Centre Formation or Vehicles for National Control? Journal of European Public Policy, 18(6), 868-887.

Eisner, M. A., Worsham, J. and Ringquist, E.J. (2006) Contemporary Regulatory Policy (Boulder: Lynne Rienner Publishers).

Elgie, R. and McMenamin, I. (2005) Credible Commitment, Political Uncertainty or Policy Complexity? Explaining Variations in the Independence of Non- majoritarian Institutions in France. British Journal of Political Science, 35(3), 531-548.

Farrell, H. and Heritier, A. (2007) Introduction: Contested Competences in the European Union. West European Politics, 30(2), 227-243.

Follesdal, A. and Hix, S. (2006) Why There is a Democratic Deficit in the EU: A Response to Majone and Moravcsik. JCMS: Journal of Common Market Studies, 44(3), 533-562.

Franchino, F. (2000) Control of the Commission's Executive Functions. European Union Politics, 1(1), 63-92.

Franchino, F. (2004) Delegating Powers in the European Community. British Journal of Political Science, 34(2), 269-293.

Garrett, G., Tsebelis, G. and Corbett, R. (2001) The EU Legislative Process: Academics vs. Practitioners - Round 2. European Union Politics, 2(3), 353-366.

Gilardi, F. (2002) Policy Credibility and Delegation to Independent Regulatory Agencies: A Comparative Empirical Analysis. Journal ofEuropean Public Policy, 9(6), 873-893.

Gilardi, F. (2007) The Same, but Different: Central Banks, Regulatory Agencies, and the Politics of Delegation to Independent Authorities. Comparative European Politics, 5(3), 303-327.

Groenleer, M. (2009) The Autonomy of European Union Agencies (Delft: Eburon).

Hanretty, C. and Koop, C. (2013) Shall the Law Set them Free? The Formal and Actual Independence of Regulatory Agencies. Regulation & Governance, 7(2), 195-214.

Heritier, A. (2012) Institutional Change in Europe: Co-Decision and Comitology Transformed. JCMS: Journal of Common Market Studies, 50, 38-54.

Huber, K. and Shackleton, M. (2013) Codecision: A Practitioner's View from Inside the Parliament. Journal of European Public Policy, 20(7), 1040-1055.

Kelemen, R. D. (2002) The Politics of 'Eurocratic' Structure and the New European Agencies. West European Politics, 25(4), 93-118.

Kelemen, R. D. and Tarrant, A. D. (2011) The Political Foundations of the Eurocracy. West European Politics, 34(5), 922-947.

Kluver, H. (2011) The Contextual Nature of Lobbying: Explaining Lobbying Success in the European Union. European Union Politics, 12(4), 483-506.

Koop, C. (2011) Explaining the Accountability of Independent Agencies: The Importance of Political Salience. Journal of Public Policy, 31(02), 209-234.

Kreppel, A. (2002) Moving Beyond Procedure. An Empirical Analysis of European Parliament Legislative Influence. Comparative Political Analysis, 35(7), 784-813.

Levi-Faur, D. and J. Jordana (2005) Globalizing Regulatory Capitalism. The ANNALS of the American Academy of Political and Social Science, 598(1), 6-9.

Levi-Faur, D. and Jordana, J. (2005) The Rise of Regulatory Capitalism: The Global Diffusion of a New Order. The ANNALS of the American Academy of Political and Social Science, 598(1), 200-217.

Lord, C. (2011) The European Parliament and the Legitimation of Agencification. Journal of European Public Policy, 18(6), 909-925.

Lord, C. and Pollak, J. (2010) Representation and Accountability: Communicating Tubes? West European Politics, 33(5), 968-988.

Maggetti, M. (2007) De Facto Independence After Delegation: A Fuzzy-Set Analysis. Regulation & Governance, 1(4), 271-294.

Maggetti, M. and Gilardi, F. (2011) The Policy-Making Structure of European Regulatory Networks and the Domestic Adoption of Standards. Journal ofEuropean Public Policy, 18(6), 830-847.

Majone, G. (1996) Regulating Europe (London: Routledge).

Majone, G. (2000) The Credibility Crisis of Community Regulation. Journal of Common Market Studies, 38(2), 273-302.

Maurer, A. (2003) The Legislative Powers and Impact of the European Parliament. Journal of Common Market Studies, 41(2), 227-247.

Mulgan, R. (2000) 'Accountability': An Ever-Expanding Concept? Public Administration, 78(3), 555-573.

Papadopoulos, Y. (2010) Accountability and Multi-level Governance: More Accountability, Less Democracy? West European Politics, 33(5), 1030-1049.

Pollak, J. and Slominski, P. (2009) Experimentalist but not Accountable Governance? The Role of Frontex in Managing the EU's External Borders. West European Politics, 32(5), 904-924.

Pollitt, C. (2003) The Essential Public Manager (Berkshire: McGraw-Hill).

Pollitt, C. (2005) Performance Management in Practice: A Comparative Study of Executive Agencies. Journal ofPublic Administration Research and Theory, 16(1), 25-44.

Rasmussen, A. (2011) Early Conclusion in Bicameral Bargaining: Evidence from the Co-decision Legislative Procedure of the European Union. European Union Politics, 12(1), 41-64.

Rasmussen, A. and Reh, C. (2013) The Consequences of Concluding Codecision Early: Trilogues and Intra-institutional Bargaining Success. Journal of European Public Policy, 20(7), 1006-1024.

Reh, C. Heritier, A., Bressanelli, E. and Koop, C. (2011) The Informal Politics of Legislation: Explaining Secluded Decision Making in the European Union. Comparative Political Studies, 46(9), 1112-1142.

Ringquist, E. J. and Eisner, M. A. (2003) Salience, Complexity, and the Legislative Direction of Regulatory Bureaucracies. Journal ofPublic Administration Research and Theory, 13(2), 141-164.

Strom, K. (2000) Delegation and Accountability in Parliamentary Democracies. European Journal of Political Research, 37, 261-289.

Thatcher, M. (2011) The Creation of European Regulatory Agencies and its Limits: A Comparative Analysis of European Delegation. Journal of European Public Policy, 18(6), 790-809.

Tsebelis, G. (2002) Veto Players: How Political Institutions Work (New York: Russell Sage Foundation).

Vos, E. (2008) European Risk Governance: Its Science, its Inclusiveness and its Effectiveness. CONNEX Report Series, 06.

Warntjen, A. (2011) Measuring Salience in EU Legislative Politics. European Union Politics, 13(1), 168-182.

Wonka, A. and Rittberger, B. (2010) Credibility, Complexity and Uncertainty: Explaining the Institutional Independence of 29 EU Agencies. West European Politics, 33(4), 730-752.

Yesilkagit, K. and Christensen, J. G. (2009) Institutional Design and Formal Autonomy: Political versus Historical and Cultural Explanations. Journal of Public Administration Research and Theory, 20(1), 53-74.