This paper employs a multi-market oligopoly model to examine the effect of cargo liberalization on competition between all-cargo carriers and mixed passenger/cargo carries. We find that if home carriers engage in the joint production of cargo and passenger services, whereas foreign carriers produce the two outputs separately, then unilateral cargo liberalization by the home country will reduce home firm profits and increase foreign profits, and raise air fares for passenger travel when foreign competition in the pas- senger sector is limited. Our analysis suggests that the separation of air cargo and passenger rights might be fraught with difficulty in Asia due to the characteristics of its air cargo market, in which most passenger carriers have substantial cargo businesses and operate "combi' fleets.
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