When a manufacturer contracts secretly with competing retailers he is subject to opportunism, and linear or non-linear tariffs may not allow the manufacturer to maintain monopoly prices. To analyse the effects of RPM, O'Brien-Shaffer (1992) use a concept of contract equilibrium which...

A supplier is known to be subject to opportunism when contracting secretly with downstream competitors, particularly when downstream firms have "passive beliefs." We stress that in many situations, an equilibrium with passive beliefs may not exist and passive beliefs appear less plausible than...

We study the incentives to firms to create divisions once the vertical structure of an industry is taken into account. Downstream firms, those that must buy an essential input from upstream firms, may create divisions. Divisionalization reduces their bargaining power against upstream firms. This...