Fageda, Xavier, 1975-2014-09-222014-09-2220142014-1254https://hdl.handle.net/2445/57510This paper estimates a frequency equation to explain the determinants of network airline service levels at their hub airports. Drawing on European data for 2002 - 2013, we find that network airlines reduce frequencies when the share of low - cost airlines increases both on the route and at the hub airport. On the contrary, frequency choices of network airlines are not affected by competition from low - cost airlines operating in nearby secondary airports. We also find some evidence that mergers in Europe may result in a re - organization of the route structure in favor of the hubs of the larger airline.28 p.application/pdfengcc-by-nc-nd, (c) Fageda et al., 2014http://creativecommons.org/licenses/by-nc-nd/3.0/Transport aeriCompetència econòmicaLogística industrialOligopolisCommercial aeronauticsCompetitionBusiness logisticsOligopoliesinfo:eu-repo/semantics/workingPaper2014-09-22info:eu-repo/semantics/openAccess