Monopoly Price Discrimination and Demand Curvature
分析了垄断企业实施三级价格歧视对社会福利和总产出的影响，给出了基于不同市场需求曲率比较的充分条件，用于判断价格歧视的福利效应是正还是负。
This paper presents a general analysis of the effects of monopolistic third-degree price discrimination on welfare and output when all markets are served. Sufficient conditions—involving straightforward comparisons of the curvatures of the direct and inverse demand functions in the different markets—are presented for discrimination to have negative or positive effects on social welfare and output.