Who Has Power in the EU? The Commission, Council and Parliament in Legislative Decision-Making

27 Pages Posted: 19 May 2006

See all articles by Robert Thomson

Robert Thomson

Trinity College (Dublin)

Madeleine Hosli

Universiteit Leiden


What is the relative power of the European Commission, the Council of Ministers and the European Parliament (EP) in the European Union (EU)? Both scholars and practitioners of EU affairs provide different answers to this seemingly straightforward question. In this article, we examine the balance of power among these three actors in the context of legislative decision-making. We report the results of a small survey among a select group of practitioners of EU affairs. Their judgements on the relative power of the three organizations vary considerably. We distinguish between two contrasting views: a Council-centric view that attributes more power to the Council of Ministers than to the Commission and Parliament, and a supranational view that attributes large amounts of power to the supranational organizations relative to the Council. To test the veracity of these alternative views, we incorporate them into two variants of a simple and testable bargaining model that makes forecasts of decision outcomes, based on information on actors' preferences. The models are then applied to a dataset that includes information on EU actors' policy positions on 162 controversial issues of which the decision outcomes are known. The variant of the bargaining model incorporating the Council-centric view provides significantly more accurate forecasts.

Suggested Citation

Thomson, Robert and Hosli, Madeleine, Who Has Power in the EU? The Commission, Council and Parliament in Legislative Decision-Making. Journal of Common Market Studies, Vol. 44, No. 2, pp. 391-417, June 2006, Available at SSRN: https://ssrn.com/abstract=902990 or http://dx.doi.org/10.1111/j.1468-5965.2006.00628.x

Robert Thomson (Contact Author)

Trinity College (Dublin) ( email )

2-3 College Green
Dublin, Leinster D2

Madeleine Hosli

Universiteit Leiden ( email )

2333 CA Leiden, Zuid Holland

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Abstract Views
PlumX Metrics