Varga, Attila; Acs, Zoltan; Anselin, Luc - Max-Planck-Institut für Ökonomik, Max-Planck-Gesellschaft - 2003
for this is that the spatial dimension of knowledge production is still only partly understood in the empirical literature … knowledge production function analysis at an appropriate level of spatial aggregation (i.e., US metropolitan areas) that has not …