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Market Performance With Multiproduct Firms

  • Simon P. Anderson

    ()

  • André de Palma

    ()

We 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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File URL: http://www.virginia.edu/economics/RePEc/vir/virpap/papers/virpap357.pdf
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Paper provided by University of Virginia, Department of Economics in its series Virginia Economics Online Papers with number 357.

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Length: 46 pages
Date of creation: 22 Dec 2003
Date of revision:
Handle: RePEc:vir:virpap:357
Contact details of provider: Web page: http://www.virginia.edu/economics/home.html

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  1. Volker Grossmann, 2003. "Firm Size and Diversification: Asymmetric Multiproduct Firms under Cournot Competition," CESifo Working Paper Series 1047, CESifo Group Munich.
  2. ANDERSON, Simon P. & DE PALMA, André & NESTEROV, Yurii, 1994. "Oligopolistic Competition and the Optimal Provision of Products," CORE Discussion Papers 1994034, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  3. Spence, Michael, 1976. "Product Selection, Fixed Costs, and Monopolistic Competition," Review of Economic Studies, Wiley Blackwell, vol. 43(2), pages 217-35, June.
  4. Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-57, May.
  5. McFadden, Daniel L., 2000. "Economic Choices," Nobel Prize in Economics documents 2000-6, Nobel Prize Committee.
  6. Andrew Caplin & Barry Nalebuff, 1990. "Aggregation and Imperfect Competition: On the Existence of Equilibrium," Cowles Foundation Discussion Papers 937, Cowles Foundation for Research in Economics, Yale University.
  7. Anderson, Simon P & de Palma, Andre, 1992. "Multiproduct Firms: A Nested Logit Approach," Journal of Industrial Economics, Wiley Blackwell, vol. 40(3), pages 261-76, September.
  8. Kenneth Train, 2003. "Discrete Choice Methods with Simulation," Online economics textbooks, SUNY-Oswego, Department of Economics, number emetr2, March.
  9. Feenstra, Robert C & Levinsohn, James A, 1995. "Estimating Markups and Market Conduct with Multidimensional Product Attributes," Review of Economic Studies, Wiley Blackwell, vol. 62(1), pages 19-52, January.
  10. 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.
  11. Justin P. Johnson & David P. Myatt, 2003. "Multiproduct Quality Competition: Fighting Brands and Product Line Pruning," American Economic Review, American Economic Association, vol. 93(3), pages 748-774, June.
  12. Verboven, Frank, 1996. "The nested logit model and representative consumer theory," Economics Letters, Elsevier, vol. 50(1), pages 57-63, January.
  13. Neven, D. & Thisse, J-F., 1989. "On Quality And Variety Competition," CORE Discussion Papers 1989020, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  14. Paul W. Dobson & Michael Waterson, 1996. "Product Range and Interfirm Competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(3), pages 317-341, 09.
  15. Goldberg, Pinelopi Koujianou, 1995. "Product Differentiation and Oligopoly in International Markets: The Case of the U.S. Automobile Industry," Econometrica, Econometric Society, vol. 63(4), pages 891-951, July.
  16. Katz, Michael L, 1984. "Firm-Specific Differentiation and Competition among Multiproduct Firms," The Journal of Business, University of Chicago Press, vol. 57(1), pages S149-66, January.
  17. Shaked, Avner & Sutton, John, 1982. "Relaxing Price Competition through Product Differentiation," Review of Economic Studies, Wiley Blackwell, vol. 49(1), pages 3-13, January.
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