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Two-Part Marginal Cost Pricing Equilibria With N Firms: Sufficient Conditions For Existence And Optimality, Aaron S. Edlin, Mario Epelbaum
Two-Part Marginal Cost Pricing Equilibria With N Firms: Sufficient Conditions For Existence And Optimality, Aaron S. Edlin, Mario Epelbaum
Aaron Edlin
We explore the interactions among firms with increasing returns regulated to break even by pricing with two-part tariffs. We provide conditions for existence and for efficiency of general equilibria with n-firms. This involves finding hookup fees that are voluntarily paid and cover the firms' losses from marginal cost pricing-a problem that because of both substitution and income effects is complicated by multiple firms using two-part tariffs, but that must be solved to ensure the continuity of demands necessary to prove break-even equilibria exist.