The concept of uneven and combined development (U&CD) interprets dynamic historical change and comparative geographical differentiation in terms of the coexistence of tendencies towards differentiation and equalization of the conditions of production, consumption, distribution and exchange, deriving from capital accumulation and political multiplicity. U&CD entails a conception of the global system as a constellation of interdependent, national institutional configurations and interests that shape international/national/regional trends. To explain geographies of industrialization and urbanization and current trends towards a pluricentric world, U&CD requires however a specification of the underlying causal mechanisms, examined in economic geography, international relations and developmental state theories.