The airline industry had traditionally remained fragmented primarily due to the limiting effects of national and international regulations. Enforced in the form of landing rights and associated competi- tive constraints, even large airline companies had only been able to develop dominance over their own regional markets at best. With the exception of the United States, dominant national flag carriers, typically owned by the national governments, had remained the only international representatives of their countries. However, the competitive dynamics in this industry had started to change dramatically in recent years. Deregulation, privatization, and the advent of new technologies have started to reshape the industry on a global level.