Analysts of air travel markets, which include antitrust authorities, are interested in understanding the extent to which the presence of intermediate stop(s) products influences the pricing of nonstop products. This paper uses a structural econometric model to investigate the potential pricing interdependence between these two product types in domestic air travel markets. Counterfactual experiments using the estimated model suggest that in many (but far from a majority) markets the current prices of nonstop products are at least 5% lower than they would otherwise be owing to the presence of intermediate-stop(s) products.
Keywords: Substitutability and Pricing Interdependence between Differentiated Air TravelProducts; Discrete Choice Demand Model.
JEL Classification codes: L13, L40, L93Acknowledgement: We thank the editor, Julian Wright, two anonymous referees, Philippe Belley, Leilei Shen, Dong Li, Tian Xia, Kate Ho, and Yang-Ming Chang for very helpful comments and suggestions. Any remaining errors are our own.