The geography of supply and demand
The development of a system of retailing requires that suppliers and their customers come together at some conveniently located point. Such points must be accessible and historically have been located at crossroads, fords, and bridging points - indeed at any 'nodal' point where human traffic converges. In the building of the British townscape the most accessible area has tended to be in the centre at a village green, market or meeting place. As retailing is dependent on attracting and retaining customers, the location of retailing facilities depends heavily on access to such central areas.