Codesharing has become an essential tool for airline alliances. This paper investigates the effects of codesharing on firm conduct and air fares, focusing on oligopolistic interaction between airlines, and measures the impacts of a codesharing agreement between non-market leaders on the market...

This paper presents a simple model of airline schedule competition that circumvents the complexities of the spatial approach used in earlier papers. Consumers choose between two duopoly carriers, each of which has evenly spaced flights, by comparing the combinations of fare and expected schedule...