Reports on Sustainable Development - The objective of a sustainable development, which is a stable target within the European Union strategies, implies a substantial rethinking of the relationships between economic growth, environmental protection and social equity. This is a multi-stakeholder process, deeply affecting public and private institutions. In 2004, ISAE, in cooperation with the Istituto Universitario di Studi Superiori (IUSS), University of Pavia, started to tackle those subjects in a specific Report which is debated twice a year on the ISAE premises by a group of experts.