We consider a three-level supply chain where a monopolistic seller distributes its product both directly through its own distribution channel and indirectly through platforms accessed by intermediaries competing for final consumers. In this setting, we examine the welfare effects of platform...

We study the competitive and welfare effects of wholesale price-parity agreements. These contracts prevent a monopolist, who sells its product to final consumers both directly and indirectly through alternative distribution channels, to charge different input (wholesale) prices to competing...