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Monopolistic Competition, Multiproduct Firms and Optimum Product Diversity

Author

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  • Ottaviano, G.I.P.
  • Thisse, J.-F.

Abstract

This paper tackles the issue of optimum product diversity in an impoerfeclty competitive market with small or large firms. First, it develops a quadratic utility model of monopolistic competition with horizontal product differentiation which avoids some of the main pitfalls of the S-D-S approach. Second, it extends the model to the case of multiproduct firms showing how product diversity is affected with respect to monopolistic competition.

Suggested Citation

  • Ottaviano, G.I.P. & Thisse, J.-F., 1999. "Monopolistic Competition, Multiproduct Firms and Optimum Product Diversity," Economics Working Papers eco99/31, European University Institute.
  • Handle: RePEc:eui:euiwps:eco99/31
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    References listed on IDEAS

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    Cited by:

    1. Combes, Pierre-Philippe & Duranton, Gilles, 2006. "Labour pooling, labour poaching, and spatial clustering," Regional Science and Urban Economics, Elsevier, vol. 36(1), pages 1-28, January.
    2. Cohen-Zada, Danny & Justman, Moshe, 2012. "Affinity and tension between religious denominations: Evidence from private school enrolment," Regional Science and Urban Economics, Elsevier, vol. 42(6), pages 950-960.
    3. Ramon Caminal & Lluís M. Granero, 2012. "Multi‐product Firms and Product Variety," Economica, London School of Economics and Political Science, vol. 79(314), pages 303-328, April.
    4. Davide Fantino, 2008. "R&D and market structure in a horizontal differentiation framework," Temi di discussione (Economic working papers) 658, Bank of Italy, Economic Research and International Relations Area.
    5. Canoy, Marcel & van Ours, Jan C. & van der Ploeg, Frederick, 2006. "The Economics of Books," Handbook of the Economics of Art and Culture, Elsevier.
    6. John Baldwin & Wulong Gu, 2009. "The Impact of Trade on Plant Scale, Production-Run Length and Diversification," NBER Chapters,in: Producer Dynamics: New Evidence from Micro Data, pages 557-592 National Bureau of Economic Research, Inc.
    7. Head, Keith & Mayer, Thierry & Ries, John, 2002. "On the Pervasiveness of Home Market Effects," Economica, London School of Economics and Political Science, vol. 69(275), pages 371-390, August.
    8. repec:eee:reecon:v:71:y:2017:i:4:p:675-689 is not listed on IDEAS
    9. repec:kap:jincot:v:18:y:2018:i:1:d:10.1007_s10842-017-0251-6 is not listed on IDEAS
    10. Nocco, Antonella & Ottaviano, Gianmarco I.P. & Salto, Matteo, 2017. "Monopolistic competition and optimum product selection: Why and how heterogeneity matters," Research in Economics, Elsevier, vol. 71(4), pages 704-717.
    11. Grossmann, Volker, 2007. "Firm size and diversification: Multiproduct firms in asymmetric oligopoly," International Journal of Industrial Organization, Elsevier, vol. 25(1), pages 51-67, February.
    12. Carsten Eckel & J. Peter Neary, 2010. "Multi-Product Firms and Flexible Manufacturing in the Global Economy," Review of Economic Studies, Oxford University Press, vol. 77(1), pages 188-217.
    13. Andrew B. Bernard & J. Bradford Jensen & Stephen J. Redding & Peter K. Schott, 2012. "The Empirics of Firm Heterogeneity and International Trade," Annual Review of Economics, Annual Reviews, vol. 4(1), pages 283-313, July.
    14. Baldwin, John R. & Brown, W. Mark & Gu, Wulong, 2008. "Geographic Market Access and the Effects of Trade on Length of Production Run, Product Diversity and Plant Scale of Canadian Manufacturing Plants, 1974 to 1999," Economic Analysis (EA) Research Paper Series 2008052e, Statistics Canada, Analytical Studies Branch.
    15. Grossmann, Volker, 2003. "Managerial Job Assignment and Imperfect Competition in Asymmetric Equilibrium," IZA Discussion Papers 738, Institute for the Study of Labor (IZA).
    16. Fabrice Darrigues, 2003. "Externalités de connaissance, équilibres spatiaux et bien-être," Economie & Prévision, La Documentation Française, vol. 157(1), pages 121-143.
    17. Simon P. Anderson & André Palma, 2006. "MARKET PERFORMANCE WITH MULTIPRODUCT FIRMS -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 54(1), pages 95-124, March.
    18. Nisvan Erkal & Daniel Piccinin, 2006. "Horizontal Mergers with Free Entry in Differentiated Oligopolies," Department of Economics - Working Papers Series 976, The University of Melbourne.
    19. Brambilla, Irene, 2009. "Multinationals, technology, and the introduction of varieties of goods," Journal of International Economics, Elsevier, vol. 79(1), pages 89-101, September.
    20. Chrysovalantou Milliou & Joel Sandonis, 2018. "Manufacturer Mergers and Product Variety in Vertically Related Markets," Journal of Industry, Competition and Trade, Springer, vol. 18(1), pages 1-24, March.
    21. Caminal, Ramon, 2006. "Too Many or Too Few Varieties? The Role of Multiproduct Firms," CEPR Discussion Papers 5938, C.E.P.R. Discussion Papers.

    More about this item

    Keywords

    COMPETITION ; MONOPOLIES ; PRODUCTION;

    JEL classification:

    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General

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