A major watershed in efforts to integrate Oeurope,O the negotiations for adding as many as ten transition economies to the European Union promise to be complex, acrimonious, and protracted. Clarifying why the debate will be so contentious, this timely volume focuses especially on core economic issues. The contributors explore the difficulties facing candidate countries, present members, and outside groups; the uneasy relationship between the Eu and its eastern neighbors; and the losses and gains each side can expect over the short and long term as the Eu widens to include new members while trying to preserve the integrity of the single market.