Economist and university professor Alfredo Marvão Pereira received his Ph.D. and M.Sc. in Economics from Stanford University in 1987. He has been a full professor at William & Mary, Virginia, USA, since 1995, with the title of Thomas Vaughan Professor of Economics and Public Policy. His main research and teaching interests lie in the area of public sector economics, specifically, in matters of taxation, social security reform, and infrastructure investment policies. In recent years his focus has been on environmental issues, in particular on macroeconomic decarbonisation strategies through taxes on carbon dioxide emissions. He is the author of more than 120 research articles published in international journals, and several books on economic policy issues.