Stephan Klasen is Professor of development economics at the University of Göttingen, Germany. He holds a PhD from Harvard University where his dissertation (supervised by Amartya Sen, Jeff Williamson, and Juliet Schor) dealt with issues of gender bias in mortality in today’s developing world and European economic history. He has since held positions at the World Bank, King’s College (Cambridge, UK), and the University of Munich. One of his main research foci concerns gender inequality issues in developing countries, including the measurement and determinants of gender bias in mortality, the causes and consequences of gender inequality in education and employment, and the measurement of gender bias using composite measures. He has also advised international organizations, including the World Bank, OECD, UNDP, and UNESCO on questions of gender inequality in developing countries.