Dr. Ceyhun Elgin is a faculty member at the Economics Department of Columbia University and also holds the title of a Professor of Economics at Bogazici University in Turkey. He obtained his PhD in economics at the University of Minnesota in 2010 and his research interests are in applied macroeconomics, economic growth, and political economics with a particular emphasis on the economics of the informal sector. Previously, Dr. Elgin also had visiting positions at the IMF, WB, and Boston University.