Present-day city growth is chiefly the result of new tertiary activities such as financial and producer services, R&D, or business administration. It seems that these activities need to be more spatially concentrated than traditional manufacturing activities. These new trends affect both the...

The primary aim of this paper is to show that " information matters " in shaping space and cities. This statement has both theoretical and empirical foundations. Theoretical reasoning, especially on the basis of economic geography modelling, is able to provide consistent and realistic...