1975, BA, Wesleyan University; 1979, MA and 1981, PhD, Harvard. 1981-89, with the International Monetary Fund; 1989-92, Vice-President, Jeffrey D. Sachs and Associates; 1992-93, Fellow, Woodrow Wilson Center for Scholars. With the US Department of the Treasury: 1993-96, Deputy Assistant Secretary for Eastern Europe and the Former Soviet Union Nations; 1996-97, Assistant Secretary for International Affairs; 1997-98, Undersecretary for International Affairs. 1998-99, Senior Associate, Carnegie Endowment for International Peace. 1999-2005, Managing Director, Moore Capital Strategy Group, Moore Capital Management. 2005-09 Global Head of Country Risk Management, Citigroup. 2009-11, Special Assistant for the President, White House. Currently, First Deputy Managing Director, International Monetary Fund (IMF). Author. Recipient: Alexander Hamilton Award, US Department of the Treasury (1998); Order of the Knight's Cross, Government of Poland (1998).