Taking stock : the keystones of ecological economics / Joan Martínez-Alier and Roldan Muradian -- The content, direction and philosophy of ecological economics / Clive L. Spash -- Analytical philosophy and ecological economics / John O'Neill and Thomas Uebel -- Value deliberation in ecological economics / Christos Zografos -- Social metabolism : a metric for biophysical growth and degrowth / Marina Fischer-Kowalski and Helmut Haberl -- Macroeconomic policies and environmental sustainability / Alejandro Nadal -- Modeling a non-growing economy : an autobiographical note / Peter A. Victor -- Degrowth : between a scientific concept and a slogan for a social movement / Panos Petridis, Barbara Muraca and Giorgos Kallis -- Water : ecological economics and socio-environmental conflicts / Beatriz Rodriguez-Labajos and Joan Martínez-Alier -- The contributions of the ecosystem services paradigm to sustainability science, policy and practice / Rudolf de Groot and Leon Braat -- Ecological economics perspectives on ecosystem services valuation / Erik Gómez-Baggethun and Berta Martín-López -- The values of traditional ecological knowledge / Victoria Reyes-García -- From conventional economics to complexity in social dilemmas : lessons from CPR experiments in the lab and the field / Juan Camilo Cárdenas -- Sustainable consumption : transitions, systems and practices / Inge Ropke -- Consumers, the environment and the new global middle classes / Alejandro Guarín and Imme Scholz -- Global environmental governance / Arild Vatn -- Economic instruments in policy mixes for biodiversity conservation and ecosystem governance / Irene Ring and David N. Barton -- The rise of PES in Brazil : from pilot projects to public policies / Emilie Coudel, Joice Ferreira, Maurício de Carvalho Amazonas, Ludivine Eloy, Marcel Hercowitz, Luciano Mattos, Peter May, Roldan Muradian, Marie-Gabrielle Piketty and Fabiano Toni -- Looking forward : current concerns and the future of ecological economics / Joan Martínez-Alier and Roldan Muradian.