Bargaining Under Bilateral Monopoly

This technical note introduces the economics of bilateral monopoly, a market structure in which a single seller faces a single buyer. Unlike competitive markets, bilateral monopoly produces no unique equilibrium price; instead, it generates a range of mutually beneficial outcomes, the contract zone, whose boundaries are determined by each party&apos;s outside options. The note explains why standard supply-and-demand analysis cannot predict the settlement within this range and examines the forces that shape it: threat points and how they shift with changing alternatives, focal points and precedent as coordination devices, self-serving bias as a source of disagreement over fairness, asymmetric information as a cause of avoidable impasse, and strategic delay as a costly signaling mechanism. The note builds on the competitive market framework presented in "The Economics of Competitive Markets" (UVA-GEM-0180) and the monopoly analysis in "Imperfect Competition and Monopolies" (UVA-GEM-0105). It is designed for use in MBA electives covering sports economics, labor economics, or negotiation, and pairs well with cases involving collective bargaining, supply chain negotiations, or merger transactions.<p>Excerpt</p><p>Bargaining Under Bilateral Monopoly</p><p>In most markets, prices emerge from the interaction of many buyers and many sellers. A wheat farmer takes the market price as given; so does the consumer at the grocery store. But some of the most consequential economic transactions occur in settings where this competitive logic breaks down: A single buyer faces a single seller, and no market mechanism determines the price. Labor negotiations between a players&apos; union and a professional sports league, wage bargaining between a firm and its workforce, and contract disputes between a sole-source supplier and its only customer all share this structure.</p><p>This note describes the economics of bilateral monopoly, a market structure in which one buyer faces one seller. It explains why standard supply-and-demand analysis fails in such settings, why the resulting price is indeterminate within a range, and how negotiators use precedent and focal points to coordinate expectations. The note also addresses why negotiations sometimes break down even when mutually beneficial agreements exist.</p><p>Bilateral Monopoly and the Bargaining Range</p><p>A bilateral monopoly exists when a single seller (a monopolist) faces a single buyer (a monopsonist). Unlike competitive markets, where the equilibrium price is determined by the intersection of supply and demand curves, bilateral monopoly produces no unique equilibrium. Each side has a preferred outcome: The seller would like to charge the monopoly price; the buyer would like to pay the monopsony price. But neither side can unilaterally impose its preferred terms, and the final price will fall somewhere between them.</p><p>What determines the boundaries of the feasible range? Each party&apos;s limit is set by its reservation value or “walk-away” point, the payoff from its best alternative if negotiations fail. The seller will not accept any price below what it could obtain elsewhere; the buyer will not pay more than the value of its next-best option. The set of outcomes that both parties prefer to their respective reservation values is the contract zone (Figure 1). Any agreement within this zone is mutually beneficial, but which point the parties actually reach remains indeterminate.</p><p>. . .</p>