Hall P. V. and Jacobs W. Shifting proximities: the maritime ports sector in an era of global supply chains, Regional Studies. Economic geographers argue that spatial and non-spatial dimensions of proximity are central to innovation and collective action. The various dimensions of proximity in...

Frenken K., Van Oort F. and Verburg T. (2007) Related variety, unrelated variety and regional economic growth, Regional Studies 41, 685-697. In economic theory, one can distinguish between variety as a source of regional knowledge spillovers, called Jacobs externalities, and variety as a...

De Goei B., Burger M. J., Van Oort F. G. and Kitson M. Functional polycentrism and urban network development in the Greater South East, United Kingdom: evidence from commuting patterns, 1981-2001, Regional Studies. In contemporary literature on changing urban systems, it is often argued that the...