| Abstract: | International airline markets have the rather unusual feature of partial deregulation with asymmetric regulatory constraints: Some carriers face entry restrictions different from others for a given route. Like domestic air travel, international travel also features hubs, where a single carrier may dominate a given airport. This article examines the effects of asymmetric regulation and airport dominance on airlines' fares in the London-New York market, a market uniquely suited for identifying the effects of both of these issues. Comparison data from the symmetrically regulated Frankfurt-New York and Paris-New York markets enable a difference-in-differences identification strategy. Regulatory restrictions are found to decrease an affected carrier's fares, whereas airport dominance increases a dominant airline's fares. |
