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Merger Simulation in Mobile Telephony in Portugal

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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File URL: http://www.netinst.org/Grzybowski-Pereira_07-12.pdf
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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
Contact details of provider: Web page: http://www.NETinst.org/

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  1. 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.
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  9. 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.
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  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.
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  14. 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.
  15. Lukasz Grzybowski, 2008. "Estimating Switching Costs in Mobile Telephony in the UK," Journal of Industry, Competition and Trade, Springer, vol. 8(2), pages 113-132, June.
  16. Matthew Shum, 2004. "Does Advertising Overcome Brand Loyalty? Evidence from the Breakfast-Cereals Market," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 13(2), pages 241-272, 06.
  17. 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.
  18. Kenneth Train, 2003. "Discrete Choice Methods with Simulation," Online economics textbooks, SUNY-Oswego, Department of Economics, number emetr2, March.
  19. 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.
  20. Doganoglu, Toker & Grzybowski, Lukasz, 2007. "Estimating network effects in mobile telephony in Germany," Information Economics and Policy, Elsevier, vol. 19(1), pages 65-79, March.
  21. 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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