Do processes of territorial integration facilitate or hinder the search for sustainable development? This article examines this question using empirical examples of cross-border regions on a sub-national level in Europe and North America. It will be shown that the processes of cross-border...

The article traces the foreign relations of 81 European regions by looking first at the constitutional competences which these regions enjoy within their nation-states. We discover that the regions in federal states have expanded their competences in two directions: conducting autonomous foreign...