Martin Guzman and Joseph E. Stiglitz

* Joseph E. Stiglitz, a Nobel laureate in economics, is University Professor at Columbia University. His most recent book, co-authored with Bruce Greenwald, is Creating a Learning Society: A New Approach to Growth, Development, and Social Progress. * Martin Guzman, a postdoctoral research fellow at the Department of Economics and Finance at Columbia University Business School, is a co-chair of the Columbia Initiative for Policy Dialogue Taskforce on Debt Restructuring and Sovereign Bankruptcy.