THE WELFARE ASPECTS OF SPATIAL PRICING POLICIES RECONSIDERED FOR A MONOPOLY CASE*
重新考察了垄断企业在出厂价、统一价和歧视性定价三种定价模式下的价格结构及其福利影响，发现空间价格歧视可能带来最高的社会福利，并在消费者偏好足够异质时带来最高的消费者剩余。
ABSTRACT. We reexamine the price structures and their welfare implications in three pricing regimes (mill, uniform and discriminatory) for a monopoly. We show that spatial price discrimination could provide the highest social welfare and, when consumers tastes are heterogeneous enough, also the highest consumer surplus. The superiority of spatial price discrimination is partially due to the larger output produced and partially due to differential treatment for consumers with heterogeneous tastes.