Too Many or Too Few Varieties? The Role of Multiproduct Firms
AbstractThe goal of this paper is to examine the role of multiproduct firms in the market provision of product diversity. The analysis is conducted within the spatial model of nonlocalized competition proposed by Chen and Riordan (2006). It turns out that the effect of multiproduct firms on product diversity depends on the size distribution of firms. Under duopoly, product diversity is lower than under monopolistic competition. Nevertheless, the number of varieties can still be socially excessive. In contrast, if a large multiproduct firm (incumbent monopolist) competes against a large number of small (single product) firms then product diversity is higher than under monopolistic competition. Moreover, the incumbent firm is unable to monopolize the market and deter entry.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 5938.
Date of creation: Nov 2006
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Find related papers by JEL classification:
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
- L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-12-09 (All new papers)
- NEP-COM-2006-12-09 (Industrial Competition)
- NEP-MIC-2006-12-09 (Microeconomics)
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- Yongmin Chen & Michael H. Riordan, 2007.
"Price and Variety in the Spokes Model,"
Royal Economic Society, vol. 117(522), pages 897-921, 07.
- Allanson, Paul & Montagna, Catia, 2005.
"Multiproduct firms and market structure: An explorative application to the product life cycle,"
International Journal of Industrial Organization,
Elsevier, vol. 23(7-8), pages 587-597, September.
- Paul Allanson & Catia Montagna, 1999. "Multiproduct Firms and Market Structure: An Explorative Application to the Product Life Cycle," Dundee Discussion Papers in Economics 101, Economic Studies, University of Dundee.
- OTTAVIANO, Gianmarco & TABUCHI , Takatoshi & THISSE, Jacques-François, .
"Agglomeration and trade revisited,"
CORE Discussion Papers RP
-1553, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-FranÁois Thisse, 2002. "Agglomeration and Trade Revisited," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(2), pages 409-436, May.
- Ottaviano, Gianmarco Ireo Paolo & Thisse, Jacques-François, 1998. "Agglomeration and Trade Revisited," CEPR Discussion Papers 1903, C.E.P.R. Discussion Papers.
- OTTAVIANO, Gianmarco & THISSE, Jacques-François, 1999. "Agglomeration and trade revisited," CORE Discussion Papers 1999041, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-Francois Tissse, 1999. "Agglomeration and Trade Revisited," CIRJE F-Series CIRJE-F-65, CIRJE, Faculty of Economics, University of Tokyo.
- Dixit, Avinash K & Stiglitz, Joseph E, 1975.
"Monopolistic Competition and Optimum Product Diversity,"
The Warwick Economics Research Paper Series (TWERPS)
64, University of Warwick, Department of Economics.
- Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
- N. Gregory Mankiw & Michael D. Whinston, 1986. "Free Entry and Social Inefficiency," RAND Journal of Economics, The RAND Corporation, vol. 17(1), pages 48-58, Spring.
- Simon P. Anderson & André de Palma, 2003. "Market Performance With Multiproduct Firms," Virginia Economics Online Papers 357, University of Virginia, Department of Economics.
- Bonanno, Giacomo, 1987. "Location Choice, Product Proliferation and Entry Deterrence," Review of Economic Studies, Wiley Blackwell, vol. 54(1), pages 37-45, January.
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