Network airlines have increasingly focused their operations on hub airports through the exploitation of connecting traffic. This has allowed them to take advantage of economies of traffic density, the existence of which is beyond dispute in the airline industry. Less attention has been devoted...

We use a difference-in-difference estimator to examine the effects of a merger involving three airlines. The novelty lies in the examination of this operation in two distinct scenarios: (1) on routes where two low-cost carriers and (2) on routes where a network and one of the low-cost airlines...