Theories of localized knowledge exchange argue that proximity among economic agents in spatial clusters fosters invention and innovation. An alternative perspective stresses interregional collaborative networks in which individuals and groups are embedded in wide-ranging webs of relationships....

O HUallachain B. and Lee D.-S. Technological specialization and variety in urban invention, Regional Studies. Urban economic theory distinguishes between knowledge spillovers that occur within specializations and those that cross technologies. Empirical analysis has sought to gauge their...

Recent acceleration in the transition to a knowledge-based economy has affected regional economic performance. The author uses an interregional convergence framework to identify the changing determinants of the growth of U.S. states in the period from 1983 to 2004. Growth of population, annual...