The urbanization process is not happening in big cities only, but also and even more rapidly in intermediary ones. According to the United Nations, today cities with fewer than a million inhabitants constitute more than 60% of the world’s urban population and they are growing faster than larger urban centres. Moreover, cities are increasingly becoming the primary drivers for trade, investment and economic governance. As a result,
a new order or system of cities, which is not based on physical size, is emerging. This new system, based on economic performance and city to city cooperation is creating different dynamics in the urban world.