“…This paper contributes to the literature on exclusive contracts and complements studies which derive exclusion results under a single‐buyer framework (e.g., Aghion & Bolton, 1987; Farrell, 2005; Fumagalli et al, 2009, 2012; Gavin & Ross, 2018; Kitamura et al, 2013, 2018a, 2018b; Yong, 1996). Broadly in line with these papers, exclusion is made possible in our setting because the buyer does not benefit sufficiently from competition between the incumbent and the entrant 7 .…”