Does the 'city region' constitute a new departure in urbanisation? If so, what are the key elements of that departure? The realities of the urban in the 21st century are increasingly complex and polychromatic. The rise of global networks enabled by supranational administrations, both governmental and corporate, strongly influences and structures the management of urban life. How we conceive the city region has intellectual and practical consequences. First, in helping us grasp rapidly changing r