Market Power and Collusion on Interconnection Market in Tunisia: What Lessons from International Experiences

We try to characterize the state of mobile phone market in Tunisia. This study will be based on a survey of foreign experience (Europe) in detecting collusive behavior and a comparison of the critical threshold of collusion between operators in countries like Tunisia. The market power will be estimated, based on the work of Parker Roller and the assumption "Balanced Calling Pattern". And the comparison of the critical threshold of collusion will be based on modeling Friedman .The “conduct parameter” measuring the intensity of competition is not null during the period (1993- 2011). Results show that collusion is easier in Tunisian market that in Algerian, Jordanian, and Moroccan market. The results are comparable to those find by “Arab Advisor Group”.