We study how the city system is affected by the possibility for the members of the same cultural diaspora to interact across different cities. In so doing, we propose a simple two- city model with two mobile cultural groups. A localized externality fosters the productivity of individuals when...

The internationalization of cities and the constitution of a new international space of power involves a much more expressive number of cities than the usual global cities. Nowadays, dozens of international organizations are composed of regional capitals, medium, and even small cities. With...