Current academic discussions on economic development make a case for `regional governance' in city-regions and stress the importance of varying institutional and policy-making frameworks for country-specific interpretations of `regionalization'. This article will look at the evolution of forms and structures of regional governance in two of the main urban regions in western Europe, London and Berlin. They have been chosen for their underlying structural-geographic comparability, including their international outlook and awareness of competitiveness, while at the same time representing quite different constitutional and institutional arrangements for territorial governance in general, and that for city regions in particular. Nevertheless, as...