Third‐Degree Price Discrimination With Interdependent Demands
分析了垄断者在两个相互依赖市场中实行第三级价格歧视对价格、产量和福利的影响，包括商品为互补品和替代品的情况，并指出影响取决于需求相互依赖的类型和强度、需求曲率及边际成本斜率。
This paper analyzes the price, output, and welfare effects of third‐degree price discrimination for a monopolist who sells in two interdependent markets. The case where the two goods sold by the monopolist are complements is analyzed as well as the more typical case where the two goods are substitutes. The economic effects of price discrimination are shown to depend on the type and strength of demand interdependence, the curvature of the demands and the slope of marginal cost. The circumstances under which price discrimination causes both market prices to either rise or fall are also analyzed.