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Mobile only users powered by fixed-mobile substitution


  • Liangy, Julienne
  • Petulowa, Marc


In a context of partial fixed-mobile substitution, we analyze fixed-mobile bundling and mobile-to-fixed off-loading in a duopoly model in which consumers buy one or two products. A joint purchase discount mitigates fixed-mobile substitutability and consequently reduces mobile-only and fixed-only consumers. Practises like introducing a small discount, applied on a bundle of multiple service or mobile-to-fixed offloading by both operators are analysed. We find that such practises do not have negative impacts on the profits of whole market and lead to both consumers' surplus and welfare gains. The investment incentives in fixed network are positive and can be boosted by FM bundling without considering regulatory intervention and before taking into account of fixed costs. The investment incentives in mobile network are more likely a situation of prisoners' dilemma where operators should invest as long as there are mobile-only consumers.

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  • Liangy, Julienne & Petulowa, Marc, 2012. "Mobile only users powered by fixed-mobile substitution," 23rd European Regional ITS Conference, Vienna 2012 60363, International Telecommunications Society (ITS).
  • Handle: RePEc:zbw:itse12:60363

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    References listed on IDEAS

    1. Barth, Anne-Kathrin & Heimeshoff, Ulrich, 2011. "Does the growth of mobile markets cause the demise of fixed networks? Evidence from the European Union," 22nd European Regional ITS Conference, Budapest 2011: Innovative ICT Applications - Emerging Regulatory, Economic and Policy Issues 52144, International Telecommunications Society (ITS).
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    5. Matutes, Carmen & Regibeau, Pierre, 1992. "Compatibility and Bundling of Complementary Goods in a Duopoly," Journal of Industrial Economics, Wiley Blackwell, vol. 40(1), pages 37-54, March.
    6. R. Preston McAfee & John McMillan & Michael D. Whinston, 1989. "Multiproduct Monopoly, Commodity Bundling, and Correlation of Values," The Quarterly Journal of Economics, Oxford University Press, vol. 104(2), pages 371-383.
    7. Carbajo, Jose & de Meza, David & Seidmann, Daniel J, 1990. "A Strategic Motivation for Commodity Bundling," Journal of Industrial Economics, Wiley Blackwell, vol. 38(3), pages 283-298, March.
    8. Rodini, Mark & Ward, Michael R. & Woroch, Glenn A., 0. "Going mobile: substitutability between fixed and mobile access," Telecommunications Policy, Elsevier, vol. 27(5-6), pages 457-476, June.
    9. William James Adams & Janet L. Yellen, 1976. "Commodity Bundling and the Burden of Monopoly," The Quarterly Journal of Economics, Oxford University Press, vol. 90(3), pages 475-498.
    10. Wolfgang Briglauer & Anton Schwarz & Christine Zulehner, 2011. "Is fixed-mobile substitution strong enough to de-regulate fixed voice telephony? Evidence from the Austrian markets," Journal of Regulatory Economics, Springer, vol. 39(1), pages 50-67, February.
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