The legislative influence of the committee of the regions in EU decision-making

This research is about the Committee of the Regions advisory role and the influence of its Opinion in the EU’s decision-making process, particularly in the co-decision procedure. For this purpose, this study attempts to answer two research questions. The first one refers to the potential of the CoR to influence the legislative institutions considering its position in the EU’s interinstitutional framework. In this part, what is of interest is the development of the CoR’s formal and informal relations with the EU’s institutions and the implications for its advisory role. The second research question refers to how and under which conditions the CoR influences the outcome of the co-decision procedure. To answer this part of the research a quantitative analysis is provided as an attempt to measure the impact of the amendments proposed by the CoR in its Opinions under co-decision and to examine possible explanations for its varying degree of influence. The results of this research show, that the CoR holds an important position within the EU’s institutional setting. The CoR exploits this position by developing strong relations especially with the Commission and the European Parliament. The relationship of the CoR with the Commission has been formalised since the mid-1990s in the adoption of cooperation agreements. In these cooperation agreements, the Commission provides for more avenues for the CoR to participate in the decision-making process by requesting for its Opinion in instances where it is not required by the Treaty. Likewise, since 2014 the EP has formalised its relationship with the CoR with their own cooperation agreement with the CoR. The outcome of the quantitative analysis confirms, that the CoR has limited influence through its formal Opinion under co-decision. However, the CoR’s advisory role should not be neglected completely, as the explanatory analysis shows that the CoR can influence the co-decision procedure when it issues its Opinion early in the decision-making process and in areas where its Opinion provides for additional legitimacy. Finally, the analysis shows that the CoR has a great ally in the EP, because if the CoR amendment is adopted by the EP, it is more likely to be adopted by the other legislative institutions and be incorporated in the final legislative act.