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The complementarity between calls and messages in mobile telephony

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  • Grzybowski, Lukasz
  • Pereira, Pedro

Abstract

This article estimates the price elasticities of the demand for mobile telephone calls and the demand for messages for Portugal. We use a panel of individual level data. In order to account for the unobserved individual heterogeneity and for the data censoring, we estimate a Tobit model for panel data with individual random effects. The demand for calls and the demand for messages are inelastic. Calls and messages are complements.
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Suggested Citation

  • Grzybowski, Lukasz & Pereira, Pedro, 2008. "The complementarity between calls and messages in mobile telephony," Information Economics and Policy, Elsevier, vol. 20(3), pages 279-287, September.
  • Handle: RePEc:eee:iepoli:v:20:y:2008:i:3:p:279-287
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    References listed on IDEAS

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    1. Heitfield, Erik & Levy, Armando, 2001. "Parametric, semi-parametric and non-parametric models of telecommunications demand: An investigation of residential calling patterns," Information Economics and Policy, Elsevier, vol. 13(3), pages 311-329, September.
    2. Greene, William, 1999. "Marginal effects in the censored regression model," Economics Letters, Elsevier, vol. 64(1), pages 43-49, July.
    3. 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.
    4. K. Andersson & Ø Foros & F. Steen, 2009. "Text and voice: complements, substitutes or both?," Industrial and Corporate Change, Oxford University Press, vol. 18(6), pages 1231-1247, December.
    5. Rappoport, Paul N. & Taylor, Lester D., 1997. "Toll price elasticities estimated from a sample of U.S. residential telephone bills," Information Economics and Policy, Elsevier, vol. 9(1), pages 51-70, March.
    6. Kridel, Donald J. & Rappoport, Paul N. & Taylor, Lester D., 2002. "IntraLATA long-distance demand: carrier choice, usage demand and price elasticities," International Journal of Forecasting, Elsevier, vol. 18(4), pages 545-559.
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    Citations

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    Cited by:

    1. Zucchini, Leon & Kretschmer, Tobias, 2011. "Competitive Pressure: Competitive Dynamics as Reactions to Multiple Rivals," Discussion Papers in Business Administration 12308, University of Munich, Munich School of Management.
    2. Youngsoo Kim & Rahul Telang & William B. Vogt & Ramayya Krishnan, 2010. "An Empirical Analysis of Mobile Voice Service and SMS: A Structural Model," Management Science, INFORMS, vol. 56(2), pages 234-252, February.
    3. Wellmann, Nicolas, 2017. "OTT-Messaging and Mobile Telecommunication: A Joint Market? An Empirical Approach," 28th European Regional ITS Conference, Passau 2017 169503, International Telecommunications Society (ITS).
    4. Basalisco, Bruno, 2012. "The effect of user interaction on the demand for mobile text messages: Evidence from cross-country data," Information Economics and Policy, Elsevier, vol. 24(2), pages 132-144.
    5. Carlo Cambini & Tommaso M. Valletti, 2008. "INFORMATION EXCHANGE AND COMPETITION IN COMMUNICATIONS NETWORKS -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 56(4), pages 707-728, December.
    6. Lukasz Grzybowski & Pedro Pereira, 2007. "Merger Simulation in Mobile Telephony in Portugal," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 31(3), pages 205-220, November.
    7. repec:spr:infosf:v:16:y:2014:i:3:d:10.1007_s10796-012-9356-y is not listed on IDEAS
    8. Lukasz Grzybowski & Pedro Pereira, 2011. "Subscription Choices and Switching Costs in Mobile Telephony," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 38(1), pages 23-42, January.
    9. Wellmann, Nicolas, 2017. "OTT-messaging and mobile telecommunication: A joint market? - An empirical approach," DICE Discussion Papers 256, University of Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    10. Vogelsang, Ingo, 2010. "The relationship between mobile and fixed-line communications: A survey," Information Economics and Policy, Elsevier, vol. 22(1), pages 4-17, March.

    More about this item

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation
    • L93 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Air Transportation

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