This paper theoretically analyzes price discrimination and universal service support. The social desirability of universal service support for the low-income consumers is demonstrated. A new type of price discrimination, named the universal-service and self-selection price discrimination, is shown to be socially desirable in comparison with other pricings, especially in the case where weights are assumed to be socially fair. This new pricing is similar to the Paretoimproving tariff or status-quo-fair tariff.