1) Barcelona has a knowledge-intensive and internationally oriented economy, with all sectors having considerable weight and Barcelona accounting for 30% of Catalonia's GDP. 2) Socially oriented city design began in the 19th century, and current residential density of around 450 dwellings/ha puts pressure on public space. 3) The document discusses Barcelona's goals of becoming a productive city formed by self-sufficient neighborhoods at a human scale, within a connected, efficient metropolis, to improve issues like unemployment, marginalization, and lack of affordability.