Plans for the development of high speed railways lines (HSR) in Spain are widespread. At the beginning of 2010 four HSR lines were operating in routes where the air transport mode used to be dominant. In this paper we examine through econometric means the air carriers' reaction to these HSR...

This paper provides evidence of the impact on frequencies and airfares of the type of codeshare agreement signed between airlines and the level of liberalization signed between governments in the international aviation market. Our work distills two basic insights: (i) increasing the level of...