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Threshold of Preference for Collusion and Interconnection Fees in Different Market Structures : the Tunisian Mobile Market Case

  • Sami Debbichi

    (AEDD - Analyse Economique et Développement Durable - Université de Tunis El Manar)

  • Walid Hichri

    (GATE Lyon Saint-Étienne - Groupe d'analyse et de théorie économique - ENS Lyon - École normale supérieure - Lyon - UL2 - Université Lumière - Lyon 2 - UCBL - Université Claude Bernard Lyon 1 - Université Jean Monnet - Saint-Etienne - PRES Université de Lyon - CNRS)

We present a Cournot model that compares the critical threshold of collusion in Duopoly and Oligopoly Markets where the actors are private, mixed or public. We assume that the incentive critical threshold for collusion depends on the interconnection fees. The different threshold values calculated in each Market structure are then estimated, using the OLS method, with variables related to the Tunisian market structures and prices. The Econometric estimation of the different threshold values is consistent with our theoretical results. Our findings can be used by the decision makers to control collusion, by acting on the level of interconnection fees for each market structure and by implementing the suitable market liberalization policies in this sector.

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Paper provided by HAL in its series Working Papers with number halshs-00794286.

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Date of creation: 25 Feb 2013
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Handle: RePEc:hal:wpaper:halshs-00794286
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  1. Dessein, Wouter, 2003. " Network Competition in Nonlinear Pricing," RAND Journal of Economics, The RAND Corporation, vol. 34(4), pages 593-611, Winter.
  2. Artz, Benjamin & Heywood, John S. & McGinty, Matthew, 2009. "The merger paradox in a mixed oligopoly," Research in Economics, Elsevier, vol. 63(1), pages 1-10, March.
  3. Baranes, Edmond & Poudou, Jean-Christophe, 2010. "Cost-based access regulation and collusion in a differentiated duopoly," Economics Letters, Elsevier, vol. 106(3), pages 172-176, March.
  4. Baranes, E. & Flochel, L., 1997. "Interconnexion de reseaux et qualite de l'infrastructure comme barriere a l'entree: quels instruments de regulation?," Papiers d'Economie Mathématique et Applications 97.56, Université Panthéon-Sorbonne (Paris 1).
  5. 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.
  6. repec:oup:restud:v:38:y:1971:i:113:p:1-12 is not listed on IDEAS
  7. Reinhard Selten, 1973. "A Simple Model of Imperfect Competition, where 4 are Few and 6 are Many," Center for Mathematical Economics Working Papers 008, Center for Mathematical Economics, Bielefeld University.
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