In order to be able to assess the future institutional relationship between the UK and the EU, this study organises the relevant facts systematically. This is done by using a framework in which two aspects are compared with each other: On the one hand, the extent of the Single Market access for...

Drawing on a new analytical framework provided by the economic theory of optimal legal areas, this paper identifies the factors determining the optimal size of the European Union. It applies this theory to the question of how enlargement affects the welfare of the current and the new members of...