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Multiproduct Quality Competition: Fighting Brands and Product Line Pruning

Author

Listed:
  • David P. Myatt
  • Justin P. Johnson
  • Johnson Graduate School of Management
  • Cornell University
Abstract
Firms selling multiple quality-differentiated products frequently alter their product lines when a competitor enters the market. We present a model of multiproduct monopoly and duopoly using a general `upgrades` approach that yields a powerful analytical framework. We provide a simple theoretical explanation for the common strategies of using `fighting brands` and of product line `pruning`. We also present a general condition that guarantees that a monopolist will forsake market segmentation opportunities and sell but a single product. A number of previously studied issues can be addressed by our model, including inter-temporal price discrimiation and `damaged goods`.

Suggested Citation

  • David P. Myatt & Justin P. Johnson & Johnson Graduate School of Management & Cornell University, 2002. "Multiproduct Quality Competition: Fighting Brands and Product Line Pruning," Economics Series Working Papers 105, University of Oxford, Department of Economics.
    • Handle: RePEc:oxf:wpaper:105
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    References listed on IDEAS

    as
    1. Gilbert, Richard J & Matutes, Carmen, 1993. "Product Line Rivalry with Brand Differentiation," Journal of Industrial Economics, Wiley Blackwell, vol. 41(3), pages 223-240, September.
    2. David Haugh & Tim Hazledine, 1999. "Oligopoly behaviour in the Trans-Tasman air travel market: The case of kiwi international," New Zealand Economic Papers, Taylor & Francis Journals, vol. 33(1), pages 1-25.
    3. Joanna Stavins, 2001. "Price Discrimination in the Airline Market: The Effect of Market Concentration," The Review of Economics and Statistics, MIT Press, vol. 83(1), pages 200-202, February.
    4. Lars A. Stole, 1995. "Nonlinear Pricing and Oligopoly," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 4(4), pages 529-562, December.
    5. De Fraja, Giovanni, 1996. "Product line competition in vertically differentiated markets," International Journal of Industrial Organization, Elsevier, vol. 14(3), pages 389-414, May.
    6. Brander, James A & Eaton, Jonathan, 1984. "Product Line Rivalry," American Economic Review, American Economic Association, vol. 74(3), pages 323-334, June.
    7. Stephen W. Salant, 1989. "When is Inducing Self-Selection Suboptimal for a Monopolist?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 104(2), pages 391-397.
    8. Jaskold Gabszewicz, Jean & Shaked, Avner & Sutton, John & Thisse, Jacques-Francois, 1986. "Segmenting the market: The monopolist's optimal product mix," Journal of Economic Theory, Elsevier, vol. 39(2), pages 273-289, August.
    9. Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-557, May.
    10. Avner Shaked & John Sutton, 1982. "Relaxing Price Competition Through Product Differentiation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 49(1), pages 3-13.
    11. Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
    12. Cabral, Luis M. B., 2000. "Introduction to Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262032864, April.
    13. Esther Gal-Or, 1983. "Quality and Quantity Competition," Bell Journal of Economics, The RAND Corporation, vol. 14(2), pages 590-600, Autumn.
    14. Gale, Ian L & Holmes, Thomas J, 1993. "Advance-Purchase Discounts and Monopoly Allocation of Capacity," American Economic Review, American Economic Association, vol. 83(1), pages 135-146, March.
    15. Raymond J. Deneckere & R. Preston McAfee, 1996. "Damaged Goods," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(2), pages 149-174, June.
    16. Kenneth L. Judd, 1985. "Credible Spatial Preemption," RAND Journal of Economics, The RAND Corporation, vol. 16(2), pages 153-166, Summer.
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    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    multiproduct quality competition; fighting brands; product line pruning; focus on quality; price discrimination;
    All these keywords.

    JEL classification:

    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality
    • L63 - Industrial Organization - - Industry Studies: Manufacturing - - - Microelectronics; Computers; Communications Equipment

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