Subject(s): Metropolitan government -- Regional planning -- European Region -- City Regions -- Governance and Planning of City regions -- Theoretical Explanations of City regions: territory, institutions , networks -- European regions and regional policy -- governing mono-and polycentric city region in Europe -- Centralizing and decentralising regionalism -- Monocentric city regions in unitary and federal states -- Regionalization -- Polycentric city regions: Between competitive localism and Marriages of Convenience -- City -regional Government and governance