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Entry, Cost Reduction and Competition in The Portuguese Mobile Telephone Industry

  • Gagnepain, Philippe
  • Pereira, Pedro

We study the effect of entry on costs and competition in the Portuguese mobile telephony industry. We construct and estimate a model that includes demand, network, and cost equations. The latter accounts for inefficiency and cost reducing effort. We show that failure to account for cost reducing effort leads to biased estimates of competition in the industry. We also find that our estimated price-cost margins are similar to hypothetical Nash margins, if firms are patient, and have optimistic beliefs about the industry growth. Finally, our results suggest that the entry of a third operator in 1998 led to significant cost reductions, and fostered competition.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 4993.

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Date of creation: Apr 2005
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Handle: RePEc:cpr:ceprdp:4993
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  1. Philippe Gagnepain & Marc Ivaldi, 2002. "Incentive Regulatory Policies: The Case of Public Transit Systems in France," RAND Journal of Economics, The RAND Corporation, vol. 33(4), pages 605-629, Winter.
  2. Philip M. Parker & Lars-Hendrik Roller, 1997. "Collusive Conduct in Duopolies: Multimarket Contact and Cross-Ownership in the Mobile Telephone Industry," RAND Journal of Economics, The RAND Corporation, vol. 28(2), pages 304-322, Summer.
  3. 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.
  4. Rosenthal, Robert W, 1980. "A Model in Which an Increase in the Number of Sellers Leads to a Higher Price," Econometrica, Econometric Society, vol. 48(6), pages 1575-79, September.
  5. Barros, Pedro Luis Pita & Cadima, Nuno, 2000. "The Impact of Mobile Phone Diffusion on the Fixed-Link Network," CEPR Discussion Papers 2598, C.E.P.R. Discussion Papers.
  6. GRUBER, Harald & VERBOVEN, Frank, . "The evolution of markets under entry and standards regulation - The case of a global mobile telecommunications," Working Papers 1999038, University of Antwerp, Faculty of Applied Economics.
  7. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, June.
  8. Aigner, Dennis & Lovell, C. A. Knox & Schmidt, Peter, 1977. "Formulation and estimation of stochastic frontier production function models," Journal of Econometrics, Elsevier, vol. 6(1), pages 21-37, July.
  9. McKenzie, David J & Small, John P, 1997. "Econometric Cost Structure Estimates for Cellular Telephony in the United States," Journal of Regulatory Economics, Springer, vol. 12(2), pages 147-57, September.
  10. Jovanovic, Boyan, 1982. "Selection and the Evolution of Industry," Econometrica, Econometric Society, vol. 50(3), pages 649-70, May.
  11. Hopenhayn, Hugo A, 1992. "Entry, Exit, and Firm Dynamics in Long Run Equilibrium," Econometrica, Econometric Society, vol. 60(5), pages 1127-50, September.
  12. 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.
  13. S.A. Lippman & R.P. Rumelt, 1982. "Uncertain Imitability: An Analysis of Interfirm Differences in Efficiency under Competition," Bell Journal of Economics, The RAND Corporation, vol. 13(2), pages 418-438, Autumn.
  14. Vuong, Quang H, 1989. "Likelihood Ratio Tests for Model Selection and Non-nested Hypotheses," Econometrica, Econometric Society, vol. 57(2), pages 307-33, March.
  15. Pereira, Pedro, 2001. "Market power, cost reduction and consumer search," International Journal of Industrial Organization, Elsevier, vol. 19(9), pages 1457-1473, November.
  16. Foreman, R Dean & Beauvais, Edward, 1999. "Scale Economies in Cellular Telephony: Size Matters," Journal of Regulatory Economics, Springer, vol. 16(3), pages 297-306, November.
  17. Seade, Jesus K, 1980. "On the Effects of Entry," Econometrica, Econometric Society, vol. 48(2), pages 479-89, March.
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