The creation of innovation districts is a recent trend in urban planning that has emerged as a new model to stimulate economic growth in cities across the globe. Since the 1950s, entrepreneurial clustering has been led by the spatial geographic model of Silicon Valley – suburban corridors with sprawling research centers and campuses. However, in the early 2000s mayors in European and American cities began dedicating zones in cities exclusively for the purpose of clustering entrepreneurs, startups, business accelerators and incubators. These spaces are easily accessible via public transportation, wired for public Wi-Fi, support mixed-use development, and nurture collaboration / knowledge-sharing.