Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper provides evidence on the effect of international airline alliances on fares. The main finding is that alliance partners charge interline fares that are approximately 25 percent below those charged by nonallied carriers. According to our theoretical model, the main source of this fare reduction is the internalization of a negative externality that arises from the uncoordinated choice of interline "subfares" in the absence of an alliance. The paper also looks for evidence of an anti-competitive alliance effect in the gateway-to-gateway markets. While the point estimates show that an alliance between two previously competitive carriers would raise fares by about 5 percent, this effect is not statistically significant. Copyright 2000 by the University of Chicago.