Joan Martinez-Alier has been Professor of Economic History and Institutions at the Universitat Autonoma de Barcelona since 1975. He was Director of the Doctoral Programme in Environmental Sciences at ICTA-UAB between 1997 and 2009, where he helped to create a strong international group on ecological economics and political ecology. He studied economics as an undergraduate at the Universitat de Barcelona and agricultural economics as a graduate student at the University of Oxford. He received his PhD from the Universitat Autonoma de Barcelona. During his career, he has been Research Fellow at St Antony’s College, Oxford, and has held visiting positions at Universidade Estadual de Campinas (Sao Paulo), Freie Universit¨at Berlin, Stanford University, the University of California (Davis), FLACSO (Ecuador) and Yale University. He was a founding member, member of the board and president of the International Society for Ecological Economics. Professor Martinez-Alier is member of the editorial board of Ecological Economics, Environmental Values, Journal of Agrarian Change and Journal of Peasant Studies. He is the author of numerous renowned books and articles (see the selected list below) that have contributed to illuminating the relationship between economic systems, resources (materials and energy) and social issues. A foundational contributor to the development of ecological economics, he has also engaged with social movements at the local and international scale.