Using an exhaustive database of bookings in one large chain of hotels active in Oslo (2013-2016), we estimate a nested-logit demand model that allows us to evaluate substitution patterns between online distribution channels. Making use of the chains' decision to delist from Expedia's platform, we can then compare simulated and actual effects of such an event on prices and market shares and identify ways to improve on simulated counterfactual outcomes.JEL Classification : D22, D43, L11, L81