Passengers valuate frequency in air travel positively because it enhances their chances of arriving at their desired time. The valuation of frequency is therefore related to the time of arrival of flights. We develop a framework to link frequency and time of arrival. We use data from a stated...

The Herfindahl-Hirschman index (HHI) is a well known concentration measure, which is both widely used and widely criticized. The main shortcoming of the HHI is its sensitivity for the relevant market definition, in terms of both geographical boundaries and in terms of product homogeneity. In...

Markets in civil aviation are characterized by large differences in the level of competition, both between time periods as between regions. To measure competition, several indicators are available, such as the number of competitors, the C4-index and the Herfindahl index. We use these measures in...

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.

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 analyzes the relative economic power position of home carriers in hub-and-spoke systems. Hub-and-spoke systems may lower costs on densely traveled routes and enable economically viable operations on less densely traveled routes. The reverse side is probably that carriers enjoy...