Economic agents rarely write optimally complete contracts in the Arrow-Debreu sense. Few regard this as puzzling, since contractual completeness of this kind is often technically infeasible. Our concern here is with the question of why contracts so often leave the contracting parties'...

The ability of an incumbent firm to deter entry through the use of exclusionary contrats with customers has been a subject of great contention in the antitrust literature. The court's concern with such exclusionary contracts has been challenged by those who argue that an incumbent firm, faced...