Two-part marginal cost pricing in a pure fixed cost economy
研究在非凸技术的一般均衡模型中，企业除按边际成本定价外再收取非统一接入费的两部制定价方案，证明其在固定成本导致规模报酬递增时是最优垄断定价，并给出均衡存在的充分条件。
Two-part marginal cost pricing is the pricing scheme where firms, in addition to the linear price equated to the marginal cost of production, charge non-uniform access fees to customers. Using a general equilibrium model with non-convex technologies, we examine the optimality and existence of this pricing scheme. First, it is shown that two-part marginal cost pricing is an optimal pricing regulation for monopolies when increasing returns to scale arise solely from the presence of fixed costs. Second, a sufficient condition for the existence of two-part marginal cost pricing equilibria is provided under the bounded losses condition. This generalizes the result of Brown et al.