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Multiproduct Pricing Made Simple
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DOI：10.1086/697902.png)
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Abstract
En 中文
We study multiproduct firms in the contexts of unregulated monopoly, regulated monopoly, and Cournot oligopoly. Using the concept of consumer surplus as a function of quantities (rather than prices), we present simple formulas for optimal prices and show that Cournot equilibrium exists and corresponds to a Ramsey optimum. We then discuss a tractable class of preferences that involve a generalized form of homotheticity. Profit-maximizing quantities are proportional to efficient quantities. We discuss optimal monopoly regulation when the firm has private information about its cost vector and find situations in which optimal regulation leaves relative price decisions to the firm.
Keywords:
PASS-THROUGH
COMPETITION
OLIGOPOLY
MONOPOLY
GAMES
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