In this interview excerpt, Bernard Snoy et d’Oppuers, an official at the World Bank from 1974 to 1979 and from 1980 to 1986, Economic Adviser at the Commission of the European Communities in the Directorate-General for Economic and Financial Affairs from 1986 to 1988, Executive Director of the World Bank from 1991 to 1994, Director of the European Bank for Reconstruction and Development (EBRD) from 1994 to 2002 and Chairman of Robert Triffin International since 2008, shares his thoughts on the conditions needed for an enlargement of the euro zone, especially to include the countries of Central and Eastern Europe.