The event was joined by many outstanding scholars, experts, business and political leaders from Asia, Europe, the United States and Latin America, including Professor Joseph E. Stiglitz, University Professor at Columbia University, winner of the 2001 Nobel Prize in Economics and winner of John Bates Clark Medal of the American Economic Association in 1979, Professor Edmund Phelps, McVickar Professor of Political Economy at Columbia University and winner of the 2006 Nobel Prize in Economics, Professor Michael Spence, William R. Berkley Professor in Economics & Business at New York University Leonard N. Stern School of Business, winner of the 2001 Nobel Prize in Economics and winner of John Bates Clark Medal of the American Economic Association in 1981, Professor Martin Feldstein, George F. Baker Professor of Economics at Harvard University and winner of John Bates Clark Medal of the American Economic Association in 1977, and Jeffrey Sachs, Special Advisor to United Nations Secretary-General and Director of The Earth Institute at Columbia University.