Antonio Maria Costa Editor-in-Chief Dominick Salvatore Co-Editor Board of Editors Board of Advisers Shinichi Ichimura Jagdish Bhagwati George Braga de Macedo Robert Dorfman Ronald I. McKinnon Hendrik Houthakker Edmund S. Phelps Lawrence Klein Alberto Quadrio Curzio Wassily Leontief†Jeffrey D. Sachs Edmond Malinvaud Karl P. Sauvant Robert Mundell Douglas O. Walker William Nordhaus Larry E. Westphal Joseph E. Stiglitz Jan Tinbergen†Volume 28, issue 4, May 2006 ISSN 0161-8938