This paper lays out and elaborates upon the properties of an extended Chamberlinian model with applications both in Industrial Organization and Economic Geography/ Urban Economics. The framework is used to explain the impact of some major changes over the last two centuries: reductions in...

In this paper we study how trip chaining affects the pricing and equilibrium number of firms. We use a monopolistic competition model where firms offer differentiated products as well as differentiated jobs to households who are all located at some distance from the firms. Trip chaining means...

This paper develops a model for the monopolistic competition of subcenters for the shoppers and workers of a central city. The model is an extension of the de Palma & Proost (2004) model that is limited to the symmetric case. Inhabitants of a CBD can choose one of the subcenters to buy a...

This paper presents a spatial model to study imperfect competition with congestion. The model is used to examine the price and wage setting of subcenters of a city. Residents live in a city while they shop and work in subcentres. Each subcenter o.ers one di.erentiated product and one...

Two types of location equilibria are compared. The first one is that of a simultaneous price and location game, the second is that of a two-stage location-then-price game. It is suggested that equilibrium locations are further apart under the second and profits are higher, since firms...

This paper considers the relative efficiency of ad valorem and unit taxes in imperfectly competitive markets. We provide a simple proof that ad valorem taxes are welfare-superior to unit taxes in the short run when production costs are identical across firms. The proof covers differentiated...

Smeed (1967) derived conditions under which it is possible for a driver to depart later and arrive earlier at a destination. In this note we replicate Smeed's argument and modify one of the postulates that under realistic traffic assumptions this phenomenon cannot occur.

A model of peak period traffic congestion analyzes the effects of capacity constraints. The model predicts the temporal distribution of traffic volumes when the demand is elastic. In response to changes in traffic conditions travellers can switch to a different mode, alternate route. The delays...