Market Performance With Multiproduct Firms
AbstractWe revisit the fundamental issue of market provision of variety associated with Chamberlin, Spence, and Dixit and Stiglitz when firms sell several products. Both products and firms are envisaged as di?erentiated. We propose a nested demand model where consumers decide upon a firm then which variant to buy, and use it to determine the market’s biases when firms compete in product ranges and prices. The market system attracts too many firms with too few products per firm: firms restrain product ranges to relax price competition, but this exacerbates overentry. The results extend to generalized nested CES models.
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Bibliographic InfoPaper provided by University of Virginia, Department of Economics in its series Virginia Economics Online Papers with number 357.
Length: 46 pages
Date of creation: 22 Dec 2003
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Web page: http://www.virginia.edu/economics/home.html
Multiproduct firms; excess variety; nested demand; product line competition;
Find related papers by JEL classification:
- L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
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