The multiproduct monopolist under vertical differentiation : An inductive approach
An inductive procedure is adopted to evaluate the behaviour of a multiproduct profit seeking monopolist vis à vis that of a social planner, in a model where there is a continuum of consumers characterized by different marginal willingness to pay for the quality. When the market is completely covered, the monopolist undersupplies all qualities as long as their number is finite. When quality becomes continuous, the richest consumer is provided with the socially optimal quality. Under the alternative assumption of partial market coverage, the monopolist supplies the same qualities as the social planner, restricting though total output. Finally, it turns out that, for a given number of varieties, under partial market coverage the monopolist can make at least as good as under full market coverage, so that she prefers to distort quantity rather than quality.
|Date of creation:||01 Jun 1997|
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"Commodity Taxation in a Differentiated Oligopoly,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 35(3), pages 613-633, August.
- Cremer, Helmuth & Thisse, Jacques-François, 1993. "Commodity Taxation in a Differentiated Oligopoly," IDEI Working Papers 25, Institut d'Économie Industrielle (IDEI), Toulouse.
- CREMER, Helmut & THISSE, Jacques-François, 1992. "Commodity taxation in a differentiated oligopoly," CORE Discussion Papers 1992035, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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- Spence, Michael, 1976. "Product Differentiation and Welfare," American Economic Review, American Economic Association, vol. 66(2), pages 407-414, May.
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