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Cost-based access regulation and collusion in a differentiated duopoly

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  • Baranes, Edmond
  • Poudou, Jean-Christophe

Abstract

This paper revisits the conventional doctrine that "it is easier to collude among equals", applied in the context of vertically related markets. In a differentiated duopoly model, we study how cost-based access price regulation may hinder the sustainability of tacit collusion.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:ecolet:v:106:y:2010:i:3:p:172-176
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    References listed on IDEAS

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    1. Behringer, Stefan, 2009. "Entry, access pricing, and welfare in the telecommunications industry," Economics Letters, Elsevier, vol. 102(3), pages 185-188, March.
    2. James W. Friedman, 1971. "A Non-cooperative Equilibrium for Supergames," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 38(1), pages 1-12.
    3. Rothschild, R., 1992. "On the sustainability of collusion in differentiated duopolies," Economics Letters, Elsevier, vol. 40(1), pages 33-37, September.
    4. Armstrong, Mark & Sappington, David E.M., 2007. "Recent Developments in the Theory of Regulation," Handbook of Industrial Organization, in: Mark Armstrong & Robert Porter (ed.), Handbook of Industrial Organization, edition 1, volume 3, chapter 27, pages 1557-1700, Elsevier.
    5. Berger, Ulrich, 2005. "Bill-and-keep vs. cost-based access pricing revisited," Economics Letters, Elsevier, vol. 86(1), pages 107-112, January.
    6. David R. Collie, 2006. "Collusion in Differentiated Duopolies with Quadratic Costs," Bulletin of Economic Research, Wiley Blackwell, vol. 58(2), pages 151-159, April.
    7. repec:ebl:ecbull:v:12:y:2004:i:3:p:1-6 is not listed on IDEAS
    8. Deneckere, R., 1983. "Duopoly supergames with product differentiation," Economics Letters, Elsevier, vol. 11(1-2), pages 37-42.
    9. Shy, Oz, 2002. "A quick-and-easy method for estimating switching costs," International Journal of Industrial Organization, Elsevier, vol. 20(1), pages 71-87, January.
    10. Paul Klemperer, 1987. "Markets with Consumer Switching Costs," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 102(2), pages 375-394.
    11. David Collie, 2004. "Collusion and the elasticity of demand," Economics Bulletin, AccessEcon, vol. 12(3), pages 1-6.
    12. Ivaldi, Marc & Jullien, Bruno & Rey, Patrick & Seabright, Paul & Tirole, Jean, 2003. "The Economics of Tacit Collusion," IDEI Working Papers 186, Institut d'Économie Industrielle (IDEI), Toulouse.
    13. Klemperer, Paul D, 1987. "Entry Deterrence in Markets with Consumer Switching Costs," Economic Journal, Royal Economic Society, vol. 97(388a), pages 99-117, Supplemen.
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    Cited by:

    1. Edmond Baranes & Stefan Behringer & Jean-Christophe Poudou, 2017. "Mobile Access Charges and Collusion under Asymmetry," Annals of Economics and Statistics, GENES, issue 127, pages 33-60.
    2. Sami Debbichi & Walid Hichri, 2013. "Threshold of Preference for Collusion and Interconnection Fees in Different Market Structures : the Tunisian Mobile Market Case," Working Papers halshs-00794286, HAL.
    3. repec:ipg:wpaper:2014-580 is not listed on IDEAS
    4. Stefano Colombo, 2013. "Differentiated Bertrand markets: restoring the minimum differentiation principle," Letters in Spatial and Resource Sciences, Springer, vol. 6(2), pages 103-108, July.
    5. Sami Debbichi & Walid Hichri, 2014. "Market Power and Collusion on Interconnection Phone Market in Tunisia : What Lessons from International Experiences," Working Papers halshs-00956638, HAL.

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