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The Consumer Loss of the Minimum Duration for Mobile Telephone Calls

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Author Info
Lukasz Grzybowski () (University of Alicante)
Pedro Pereira () (Autoridade da Concorrência)

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Abstract

We estimate, for Portugal, the monetary loss per consumer of the existence of a minimum duration for mobile telephone calls. First, we estimate the demand for durations of calls, using individual level data and a Tobit model for panel data with individual random effects. The demand for duration is inelastic, and the elasticity varies across firms. At current prices, the average uncensored duration of calls ranges between 63-66 seconds, while with a minimum duration, the average duration is 101-109 seconds. The existence of a minimum duration for calls leads to a monetary loss for consumers of 35-40% of the average bill.

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File URL: http://www.concorrencia.pt/download/WP26_Duration.pdf
File Format: application/pdf
File Function: First version, 2007
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Publisher Info
Paper provided by Portuguese Competition Authority in its series Working Papers with number 26.

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Length: 17 pages
Date of creation: Jul 2007
Date of revision:
Handle: RePEc:pca:wpaper:26

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Related research
Keywords: Mobile Telephony; Price Elasticities; Call Duration; Tobit model;

Find related papers by 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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  2. Park, Rolla Edward & Wetzel, Bruce M & Mitchell, Bridger M, 1983. "Price Elasticities for Local Telephone Calls," Econometrica, Econometric Society, vol. 51(6), pages 1699-730, November. [Downloadable!] (restricted)
  3. Greene, William, 1999. "Marginal effects in the censored regression model," Economics Letters, Elsevier, vol. 64(1), pages 43-49, July. [Downloadable!] (restricted)
    Other versions:
  4. Nicholas Economides & V. Brian Viard & Katja Seim, 2005. "Quantifying the Benefits of Entry into Local Phone Service," Working Papers 05-08, NET Institute, revised Nov 2005. [Downloadable!]
    Other versions:
  5. Maija Gao & Ari Hyytinen & Otto Toivanen, 2005. "Demand for Mobile Internet: Evidence from a Real-World Pricing Experiment," Discussion Papers 964, The Research Institute of the Finnish Economy. [Downloadable!]
  6. Madden, Gary G & Coble-Neal, Grant & Dalzell, Brian, 2004. "A dynamic model of mobile telephony subscription incorporating a network effect," MPRA Paper 10829, University Library of Munich, Germany. [Downloadable!]
  7. Madden, Gary & Bloch, Harry & Hensher, David, 1993. "Australian telephone network subscription and calling demands: evidence from a stated-preference experiment," Information Economics and Policy, Elsevier, vol. 5(3), pages 207-230, October. [Downloadable!] (restricted)
    Other versions:
  8. Bidwell, Miles O, Jr & Wang, Bruce X & Zona, J Douglas, 1995. "An Analysis of Asymmetric Demand Response to Price Changes: The Case of Local Telephone Calls," Journal of Regulatory Economics, Springer, vol. 8(3), pages 285-98, November.
  9. Kenneth E. Train & Daniel L. McFadden & Moshe Ben-Akiva, 1987. "The Demand for Local Telephone Service: A Fully Discrete Model of Residential Calling Patterns and Service Choices," RAND Journal of Economics, The RAND Corporation, vol. 18(1), pages 109-123, Spring. [Downloadable!] (restricted)
  10. 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. [Downloadable!] (restricted)
  11. 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. [Downloadable!] (restricted)
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