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 …

estimate how agglomeration and congestion effects have changed between 1972 and 1992. Non-service sectors are found to be …

Why does the level of economic activity vary so much across space? One reason given is "agglomeration economies … macroeconomic model, the contribution of agglomeration economies to the observed spatial concentration of US employment. The … natural advantages. In contrast, if it is rationalized via an agglomeration threshold (an employment level below which …

The bottleneck model of congestion with endogenous scheduling has become a standard tool of transportation economics …. It provides surprising insights about the time pattern of congestion, optimal pricing, and many distinct inefficiencies …-time reliability, traffic information, and extreme congestion ("hypercongestion"). It has been developed for use in practical network …

This paper considers a congested bottleneck. A fast lane reserves a more than proportional share of capacity to a … the bottleneck and inelastic demand. It can replicate the arrival schedule and queueing outcomes of a toll that optimally …

where commuting takes place. We show that this combination of congestion and agglomeration externalities leads to a general … introduce bid rent models that allow for endogenous business and residential location choice as well as employment agglomeration … residents as jobs at every location. We extend the latter model by introducing a traffic congestion external effect that adds a …