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Product differentiation and competitive pressure

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  • Bernd Theilen

Abstract

This paper compares the commonly used linear demand model introduced by Bowley (The mathematical groundwork of economics, Oxford University Press, Oxford, 1924 ) with the specification of Shapley and Shubik (Kyklos 22:30–44, 1969 ). The latter has the advantage that aggregate demand does not depend on a parameter that measures the degree of product differentiation. This allows to interpret variations in the degree of product differentiation as changes in competitive pressure because these changes can influence aggregate demand only through changes in equilibrium prices and quantities. The consequences of the alternative specifications are made explicit with two applications. In both cases the different specifications yield substantial changes in important results in industrial economics. Copyright Springer-Verlag 2012

Suggested Citation

  • Bernd Theilen, 2012. "Product differentiation and competitive pressure," Journal of Economics, Springer, vol. 107(3), pages 257-266, November.
    • Handle: RePEc:kap:jeczfn:v:107:y:2012:i:3:p:257-266
    DOI: 10.1007/s00712-011-0261-5
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    References listed on IDEAS

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    1. Tishler, Asher & Milstein, Irena, 2009. "R&D wars and the effects of innovation on the success and survivability of firms in oligopoly markets," International Journal of Industrial Organization, Elsevier, vol. 27(4), pages 519-531, July.
    2. Avinash Dixit, 1979. "A Model of Duopoly Suggesting a Theory of Entry Barriers," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 20-32, Spring.
    3. Xavier Vives, 2008. "Innovation And Competitive Pressure," Journal of Industrial Economics, Wiley Blackwell, vol. 56(3), pages 419-469, December.
    4. Lin, Ping & Saggi, Kamal, 2002. "Product differentiation, process R&D, and the nature of market competition," European Economic Review, Elsevier, vol. 46(1), pages 201-211, January.
    5. Nirvikar Singh & Xavier Vives, 1984. "Price and Quantity Competition in a Differentiated Duopoly," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 546-554, Winter.
    6. Xavier Vives, 2001. "Oligopoly Pricing: Old Ideas and New Tools," MIT Press Books, The MIT Press, edition 1, volume 1, number 026272040x, April.
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    Cited by:

    1. Ming Chang & Yan-Ching Ho, 2014. "Comparing Cournot and Bertrand equilibria in an asymmetric duopoly with product R&D," Journal of Economics, Springer, vol. 113(2), pages 133-174, October.
    2. Olga Slivko & Bernd Theilen, 2014. "Innovation or imitation? The effect of spillovers and competitive pressure on firms’ R&D strategy choice," Journal of Economics, Springer, vol. 112(3), pages 253-282, July.
    3. Choné, Philippe & Linnemer, Laurent, 2020. "Linear demand systems for differentiated goods: Overview and user’s guide," International Journal of Industrial Organization, Elsevier, vol. 73(C).
    4. Yuanbin Xu & Yuchen Wang & Fucai Lu & Quan Xiao, 2023. "Toss a Peach and Get Back a Plum: Impact of Customized Services on Firm Performance," SAGE Open, , vol. 13(3), pages 21582440231, September.

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    More about this item

    Keywords

    Oligopoly markets; Product differentiation; Competitive pressure; D43; L1; O3;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights

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