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Merger Simulation in Mobile Telephony in Portugal

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Author Info
Lukasz Grzybowski () (Competition Commission, UK)
Pedro Pereira () (Autoridade da Concorrencia)

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Abstract

This article assesses the unilateral effects on prices of a merger in the Portuguese mobile telephony market. We use aggregate quarterly data from 1999 to 2005 and a nested logit model to estimate the price elasticities of demand and the marginal costs of subscription of mobile telephony. Given these estimates, we simulate the effects of the merger. We find that the available mobile telephony subscription products are close substitutes. The merger may cause substantial price increases, even in the presence of large cost efficiencies. On average, prices increase by 7-10% without cost efficiencies, and by about 6-10% with a 10% marginal cost reduction.

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Publisher Info
Paper provided by NET Institute in its series Working Papers with number 07-12.

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Length: 24 pages
Date of creation: Sep 2007
Date of revision: Sep 2007
Handle: RePEc:net:wpaper:0712

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Web page: http://www.NETinst.org/

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Related research
Keywords: lock-in; merger simulation; mobile telephony; nested logit; network effects;

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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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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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  3. Ivaldi, Marc & Verboven, Frank, 2005. "Quantifying the effects from horizontal mergers in European competition policy," International Journal of Industrial Organization, Elsevier, vol. 23(9-10), pages 669-691, December. [Downloadable!] (restricted)
    Other versions:
  4. Cadima, Nuno & Pita Barros, Pedro Luis, 2000. "The Impact of Mobile Phone Diffusion on the Fixed-Link Network," CEPR Discussion Papers 2598, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
  5. Okada, Yosuke & Hatta, Keiko, 1999. "The Interdependent Telecommunications Demand and Efficient Price Structure," Journal of the Japanese and International Economies, Elsevier, vol. 13(4), pages 311-335, December. [Downloadable!] (restricted)
  6. Hausman, Jerry & McFadden, Daniel, 1984. "Specification Tests for the Multinomial Logit Model," Econometrica, Econometric Society, vol. 52(5), pages 1219-40, September. [Downloadable!] (restricted)
    Other versions:
  7. Aviv Nevo, 2000. "Mergers with Differentiated Products: The Case of the Ready-to-Eat Cereal Industry," RAND Journal of Economics, The RAND Corporation, vol. 31(3), pages 395-421, Autumn.
  8. Anderson, Simon P & de Palma, Andre, 1992. "Multiproduct Firms: A Nested Logit Approach," Journal of Industrial Economics, Blackwell Publishing, vol. 40(3), pages 261-76, September. [Downloadable!] (restricted)
    Other versions:
  9. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer. [Downloadable!] (restricted)
  10. Philip Crooke & Luke Froeb & Steven Tschantz & Gregory Werden, 1999. "Effects of Assumed Demand Form on Simulated Postmerger Equilibria," Review of Industrial Organization, Springer, vol. 15(3), pages 205-217, November. [Downloadable!] (restricted)
  11. Pinkse, Joris & Slade, Margaret E., 2004. "Mergers, brand competition, and the price of a pint," European Economic Review, Elsevier, vol. 48(3), pages 617-643, June. [Downloadable!] (restricted)
  12. Pedro Pereira & José C. Pernías-Cerrillo, 2005. "The Diffusion of Cellular Telephony in Portugal before UMTS: A Time Series Approach," Working Papers 08, Portuguese Competition Authority. [Downloadable!]
  13. Pedro Pereira & Tiago Ribeiro, 2006. "The Impact on Broadband Access to the Internet of the Dual Ownership of Telephone and Cable Networks," Working Papers 17, Portuguese Competition Authority. [Downloadable!]
    Other versions:
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This page was last updated on 2009-11-20.

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