This paper discusses the concept of toleration as it has been manifested in modern society through two contrasting processes the prevalence of group identity, and the prevalence of identity defined according to citizenship and individual rights. Referring primarily to the work of political...

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...