This paper analyses some of the economic issues involved in the diffusion of modern intermodal technologies and the impact of intermodality on the functions performed by nodes in transportation networks. Two simple economic models are presented: the first considers why an intermodal transport...

We harness big data to detect prime locations - large clusters of knowledge-based tradable services - in 125 global cities and track changes in the within-city geography of prime service jobs over a century. Historically smaller cities that did not develop early public transit networks are less...