Under standard assumptions, equilibria with three parties normally do not exist in spatial models of electoral competition. In this paper, the author shows that such equilibria are possible if it is assumed that voters are uncertain about the exact policies parties will adopt once elected....

The bargaining product of the Amsterdam Intergovernmental Conference—the Amsterdam Treaty—dwindled down the draft proposal to a consensus set of all fifteen member states of the European Union (EU). Using the two-level concept of international bargains, we provide a thorough analysis of how...

When signing the new Treaty on European Union in Maastricht, the governmental leaders of the 12 member countries of the European Communities had accomplished a significant step towards economic and political union. Before taking effect the draft proposal had, however, to be ratified according to...

An increasing number of member countries of the European Union (EU) is heading for ratification through referendum of the yet to be adopted constitution for Europe. Such popular votes will add an additional ratification constraint and empirical models will require information on the positions of...