prominent political scientist and former director of the Saltzman Institute of War and Peace Studies J. Bowyer Bell, historian, artist, and art critic Stephen Biddle, author, historian, policy analyst Akeel Bilgrami, philosopher of language and of mind Sandra Black, economist, former member of the Council of Economic Advisers Jason Bordoff, founding dean of Columbia Climate School Ian Bremmer, founder of Eurasia Group Howard Warren Buffett, research scholar, grandson of Warren Buffett Charles Calomiris, financial policy expert Guillermo Calvo, economist for macroeconomics and monetary economics, famous for Calvo (staggered) contracts Mauricio Cárdenas Santamaría, 69th Minister of Finance and Public Credit and former Minister of Mines and Energy of Colombia Thomas J. Christensen, China expert Richard Clarida, former Vice Chair of the Federal Reserve John Henry Coatsworth, former provost of Columbia University, Latin American expert Steven A. Cohen, former director of The Earth Institute David Dinkins, first African American mayor of New York City Mamadou Diouf, historian Michael W. Doyle, the theorist of the liberal “democratic peace” Albert Fishlow, noted expert on Brazil and former Deputy Assistant Secretary of State for Inter-American Affairs Howard Steven Friedman, Health Economist and Statistician at the United Nations Ester Fuchs, urban and social policy expert Geoffrey M. Heal, British-American economist known for contributions to environmental economics Christopher R. Hill, former United States Ambassador to Iraq and dean of the Josef Korbel School of International Studies Merit Janow, the only North American member of the WTO appellate body; former Deputy Assistant U.S. Trade Representative for Japan and China (1990–1993) Robert Jervis, one of the most influential international relations scholars, expert on foreign policy analysis and political psychology Rashid Khalidi, historian and former director of SIPA's Middle East Institute Kenneth Lipper, former deputy mayor of New York City, financier, novelist, and screenwriter John Liu, former New York City Comptroller and current member of the New York State Senate Mark M. Lowenthal, former Assistant Director of Central Intelligence for Analysis and Production and Deputy Assistant Secretary of State for Intelligence Research Edward Luck, expert on the United Nations William H. Luers, retired career diplomat and museum executive Mahmood Mamdani, leading Africa scholar Jack F. Matlock Jr., former U.S. Ambassador to the Soviet Union Keren Yarhi-Milo, political scientist and director of the Arnold A. Saltzman Institute of War and Peace Studies Michael Nutter, 98th Mayor of Philadelphia Michael E. O'Hanlon, defense researcher at The Brookings Institution José Antonio Ocampo, former