Platforms in two-sided markets are known to provide subsidies to either buyers or sellers, in order to take advantage of cross-group externalities inherent in such industries. Online travel agents can be thought of as platforms facilitating trade between passengers and travel service providers...

We approach the issue of the value of a platform to a seller in a two-sided market where both buyers and sellers multi-home. A seller that loses access to a major buyer platform can potentially incur substantial financial losses. We exploit a recent conflict between American Airlines and two...

We examine the financial consequences of a reseller excluding a certain supplier. The American Airlines dispute with Expedia and Orbitz provides a natural experiment, in which American Airlines travel options were suspended during the first and second quarters of 2011. We analyze price data for...