The document discusses knowledge-based economies and their impact on urban transformation. It focuses on three key points:
1) Knowledge-based economies have accelerated the introduction of new building typologies that are affecting pre-existing urban fabrics.
2) Highly concentrated productive processes are emerging in specific areas of cities. Urban policies must foster these concentrations by improving characteristics that allow innovation.
3) Localization theories emphasize the role of interaction and knowledge diffusion between firms in innovation clusters and learning regions. National and regional innovation systems also influence economic development.