We investigate the practice of carriers that charge higher fares for flights leaving from their hub. We analyze this phenomenon by relating fares to distance, using the main leg of intercontinental flights for scaling purposes. Our results indicate that the practice of a mark up on flights...

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...