Drawing on recent work on the creation and breakup of countries, this paper examines the impact of economic and political integration on the vertical government structure. It argues that by increasing the market size and the benefits from the decentralized provision of public goods, integration...

From a pure welfare economic viewpoint, there is no contradiction between a deepening and a widening of the EU. However, the analysis in this paper shows that the factual degree of deepening efforts within the EU by far exceeds the economically optimal one. Above all, the tendency of the...