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Network externalities between carriers or machines:How they work in the smartphone industry

Author

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  • Ryoma Kitamura

    (Graduate School of Economics, Kwansei Gakuin University)

Abstract

In this paper, we consider a duopoly model where two firms sell two differentiated products and there is a network externality between either carriers or machines. We derive the equilibria of these games and illustrate the effects of a change in quality on the equilibrium quantity of each good. Furthermore, we compare fully compatible and incompatible equilibrium outcomes and discover some insights on relations between them. Such insights were not found in earlier studies that considered only the network externality between carriers.

Suggested Citation

  • Ryoma Kitamura, 2014. "Network externalities between carriers or machines:How they work in the smartphone industry," Discussion Paper Series 117, School of Economics, Kwansei Gakuin University, revised Mar 2014.
    • Handle: RePEc:kgu:wpaper:117
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    File URL: http://192.218.163.163/RePEc/pdf/kgdp117.pdf
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    References listed on IDEAS

    as
    1. Baake, Pio & Boom, Anette, 2001. "Vertical product differentiation, network externalities, and compatibility decisions," International Journal of Industrial Organization, Elsevier, vol. 19(1-2), pages 267-284, January.
    2. Haruvy, Ernan & Prasad, Ashutosh, 1998. "Optimal product strategies in the presence of network externalities," Information Economics and Policy, Elsevier, vol. 10(4), pages 489-499, December.
    3. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
    4. Belleflamme,Paul & Peitz,Martin, 2015. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9781107687899, January.
    5. Ryoma Kitamura & Tetsuya Shinkai, 2014. "Cannibalization may Allow a Cost-inefficient Firm to Earn more than a Cost-effcient Firm in a Duopoly with Two Vertically Differentiated Goods," Discussion Paper Series 113, School of Economics, Kwansei Gakuin University, revised Jan 2014.
    6. Ryoma Kitamura & Tetsuya Shinkai, 2013. "The Economics of Cannibalization: A Duopoly in which Firms Supply Two Vertically Differentiated Products," Discussion Paper Series 100, School of Economics, Kwansei Gakuin University, revised Feb 2013.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    Smartphone market; Multi-product firm; Duopoly; Cannibalization; Network externality;
    All these keywords.

    JEL classification:

    • D21 - Microeconomics - - Production and Organizations - - - Firm Behavior: Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

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