We survey the main theoretical contributions on patent licensing in spatial models of competition. Building on both the shopping models à la Hotelling and the shipping models of spatial discrimination, our analysis focuses on how the spatial dimension of competition drives the choice of the...

We reconsider the endogenous choice of delegation to a manager by two down-stream firms in both a Cournot and a Bertrand vertical market with network effects. An upstream monopolist charges a two-part tariff for a crucial input. By applying the Nash solution in a centralized bargaining, we show...