Dr. Emilson Caputo Silva obtained his PhD degree in Economics from the University of Illinois at Urbana-Champaign in 1993. Prior to joining the School of Economics at Georgia Tech, he worked at the Department of Economics at University of Oregon and at the Department of Economics at Tulane University. His main areas of research interest are Public Economics and Environmental Economics with a concentration on Transnational Pollution, International Environmental Agreements, Transnational Terrorism, Fiscal Federalism, Voluntary Provision of Public Goods, Tax Administration, Club Theory and Corruption. In Environmental Economics, his work has focused on Trading of Emission Permits, Climate Change, Correlated Emissions of Multiple Transboundary Pollutants and Efficiency and Stability of International Environmental Agreements. He has published in peer reviewed journals such as Journal of Political Economy, Economic Journal, European Economic Review, Oxford Economics Papers, Journal of Public Economics, Journal of Urban Economics, Journal of Environmental Economics and Management, and International Tax and Public Finance.