The Economic Impact of Enlargement on the European Economy: Problems and Perspectives. CEPS Working Document No. 188, October 2002

Much of the attention on the economic aspects of the forthcoming enlargement of the EU have concentrated upon the high-profile issues which are linked to the level of relative economic development in the acceding countries; the perceived threat of large-scale migration and the budgetary costs arising from implementation of EU agricultural and regional policies. This paper briefly discusses that these are not insurmountable problems and stresses that the main difficulties from the next enlargement may arise from the effective inclusion of the acceding countries into the Single Market, the microeconomic hub of the EU. We discuss that the process of regulatory harmonisation will become more difficult in an EU of 25 or more members, which entails greater emphasis on the principle of mutual recognition as the main tool for ensuring freedom of movement of goods and services. However, mutual recognition has its limits and is likely to be less effective the more diverse the countries involved