Monopoly Pricing, Journal of Economic Theory
Monopoly pricing is examined in a general framework with an unknown population distribution of consumer characteristics, downward-sloping, multi-unit consumer demand, and increasing marginal cost. Reference point pricing is introduced and is shown to implement the profit-maximizing allocation. Nonlinear pricing is shown to be approximately optimal for the monopolist as the number of consumers gets large.
Spulber, Daniel. 1993. Monopoly Pricing. Journal of Economic Theory. 59(1): 222-234.