Defining a global city The Global Power City Index (GPCI) evaluates and ranks the major cities of the world according to their magnetism Their capacity to attract creative people and business enterprises from around the world and to mobilize their assets in securing economic, social, and environmental development.

MAGNETISM Capacity to control world economic flows HQ for TNCs Stock Exchange and financial centres Employment pole (tertiary sector, university) Culture FOUR GLOBAL ACTORS: managers, researchers, artists, visitors ONE LOCAL ACTOR: residents

Six main functions are taken into account (Global Power City index ) - Economy - Research and development - Culture and interaction - livability - Environment - Accessibility

Purple: Economy – Blue-grey: research & development – pink: cultural interaction light blue: livability – green : environment – orange: accessibility