CEPR is pleased to welcome a new Senior Research Associate, economist Roberto Frenkel. He is Principal Research Associate at the State and Society Research Center (Centro de Estudios de Estado y Sociedad—CEDES) and Professor at the University of Buenos Aires (Universidad de Buenos Aires) in Buenos Aires, Argentina. Today, CEPR released his article, Argentina: The Central Bank in the Foreign Exchange Market. The original article (in Spanish) was published in La Nación on December 31, 2006. For more information on Roberto Frenkel, see his biography or his full CV (in Spanish).