considering interregional migration in R&D-sectors. The effects of migration and firm decisions on both industrial agglomeration …

firms tend to choose locations that are symmetric around the point of highest density, and there can be no agglomeration. …

interest in measuring the size and scope of local spillovers (i.e., simple anonymous agglomeration or congestion effects, or …

interactions. In particular, we prove uniqueness in the case of congestion effects and use a series of simulations to demonstrate … that a unique equilibrium is more likely to obtain (i) the smaller are any agglomeration effects, (ii) the larger are the …