Spatial Price Discrimination with Heterogeneous Products
在空间价格歧视模型中引入产品异质性，发现标准同质产品模型的许多强性质不再成立，社会最优只有在产品完全相同或差异极大时才能作为市场均衡实现。
Product heterogeneity is introduced into the context of spatial price discrimination. Many of the strong properties of the standard homogeneous goods case (which are attained as a limit case here) are shown to be no longer valid. In particular, the social optimum is no longer sustainable as a market equilibrium unless products are either identical or else very different.