Agency model versus wholesale model

Agency and wholesale models are widely adopted vertical contractual agreements. This paper compares the private incentives and social welfare of these two business models by highlighting the differences in move order and price structure. With a monopoly platform, the agency model dominates the wholesale model with respect to social welfare and the platform's profit if and only if demand is subconvex. With duopoly platforms, having both platforms adopt the agency model is socially desirable, and it is a dominant-strategy Nash equilibrium if demand is weakly convex. Our findings have novel theoretical contributions and offer insights into some influential antitrust cases.