The Commission has prohibited, on the basis of the EU Merger Regulation, the proposed takeover by Ryanair of Aer Lingus. The acquisition would have combined the two leading airlines operating from Ireland which currently compete vigorously against each other. The Commission concluded that the merger would have harmed consumers by removing this competition and creating a monopoly or a dominant position on 35 routes operated by both parties. This would have reduced choice and, most likely, led to higher prices for more than 14 million EU passengers using these routes to and from Ireland each year. The Commission's investigation and market test of remedies offered by Ryanair demonstrated that these remedies were inadequate to remove the competition concerns. In particular the limited number of airport "slots" offered was not likely to lead to competition sufficient to replace the competitive pressure currently exercised by each airline on the other. The Commission therefore concluded that the concentration would significantly impede effective competition within the European Economic Area (EEA) or a substantial part of it.