A proposal has been made to build a new tunnel under the Scheldt River near the centre of Antwerp in order to relieve traffic congestion on the ring road and in an existing tunnel. The new tunnel is expected to cost more than €1 billion, and tolls have been suggested to help finance...

This paper extends an earlier paper by the authors ("Maintenance and congestion pricing with competing roads" presented at ERSA 2005) by introducing two user groups: heavy and light vehicles (viz. trucks and cars). This extension is important since heavy vehicles generate higher congestion and...

The merits of separating cars and trucks have long been debated. Potential advantages include smoother traffic flows, lower accident rates, improved air quality and reduced maintenance and road infrastructure costs. Large trucks are often banned from urban roads and restricted to certain lanes...

There is a growing interest in using the discrete choice approach to study oligopolistic competition under product differentiation, and a prominent discrete choic model is the multinomial logit. Here we analyze various aspects of the logit in this context. We first show that the predictions of...

) and Shaked and Sutton (1982). Finally, despite the fact that the equilibrium concept is open-loop, all but the introductory price of the high quality good converge to marginal cost in the limit as firms can change prices arbitrarily frequently.

We review the literature on household decision-making in economics as well as in transportation and urban economics. This literature starts with Gary Becker in Economics, 30 years ago, and has recently been introduced to study specific questions related to space. We consider two examples:...

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...