In jüngerer Zeit sind in einigen europäischen Städten Nulltarife im Öffentlichen Personennahverkehr eingeführt worden. Zu welchen Ergebnissen führte diese Maßnahme? Konnten damit Pkw-Fahrer zu einem Umstieg auf den umweltfreundlichen ÖPNV bewegt und die Externaiitäten des Pkw-Verkehrs...

In this paper a model, based on the nested multinomial logit model, is used to analyze airport competition and airline competition in a multiple airport region. It is shown that if the frequency elasticity of demand is smaller than 1, airfare-frequency and airport tax equilibria exist and are...

Conventional economic wisdom suggests that congestion pricing would be an appropriate response to cope with the growing congestion levels currently experienced at many airports. Several characteristics of aviation markets, however, may make naive congestion prices equal to the value of marginal...

We analyse the behaviour of market participants in a multi-modal commuter network where roads are not priced, but public transport has a usage fee, which is set while taking the effects on the roads into account. In particular, we analyse the difference between markets with a monopolistic public...

Congestion has become a problem for many airports throughout the world. Two different policy options to control congestion are analyzed in this paper: slot constraints and congestion pricing. In particular, our model takes into account that the airline industry is characterized by significant...