This discussion paper resulted in a publication in <I>Transportation Research Part B: Methodological</I> (2011). Vol. 45(10), pages 1545-1559.<P> This paper analyses the cost of access travel time variability for air travelers. Reliable access to airports is important since it is likely that the cost of...</p></i>

This discussion paper resulted in a publication in the <I>Journal of Urban Economics</I> (2004). Volume 55, pages 257-277.<P> Conventional economic wisdom suggests that congestion pricing would be an appropriate response to cope with the growing congestion levels currently experienced at many airports....</p></i>

We analyze the phenomenon of hub dominance by developing a model relating faresto distance, using the mainleg of intercontinental flights for scaling purposes. Our results indicate thatat least some of the major Europeancarriers place a mark up on flights originating from or going to their hubs.

This paper investigates optimal airport pricing when airlines provide imperfect substitutes products, and make decisions on capacity, scheduling and pricing. We show that the first-best toll per flight may be higher than the simple market-shares formulae that were recently derived for Cournot...

We analyze maximal cartel prices in infinitely-repeated oligopoly models under leniency where fines are linked to illegal gains, as often outlined in existing antitrust regulation, and detection probabilities depend on the degree of collusion. We introduce cartel culture that describes how...

This discussion paper resulted in the publication <I>The B.E. Journal of Economic Analysis & Policy</I> (2007), 7(1), 1135.<P> Intuitively, extending the period of repose for price fixing agreements enhances the effectiveness of competition policy enforcement. This paper proofs this intuition wrong. As...</p></i>

We analyze how leniency affects cartel pricing in an infinitely-repeated oligopoly model where the fine rates are linked to illegal gains and detection probabilities depend on the degree of collusion. A novel aspect of this study is that we focus on the worst possible outcome. We investigate the...