The International Competition Network (ICN) is an informal network of national or multinational competition authorities set up for handling competition-related problems by focusing on enhancing cooperation and harmony in procedural and substantial matters. Extending antitrust experience and best practices, enhancing the advocacy role of competition authorities and international cooperation are among the basic goals of the ICN. The ICN carries out its studies through project-oriented methods. Members possess a full discretionary power in deciding on the implementation of a recommendation or best practices based on unanimity, which shall emerge as a result of such projects. There are working groups within the ICN for various issues such as mergers and acquisitions, cartels, unilateral conduct, advocacy and agency effectiveness. Activities of working groups are mainly based on questionnaires distributed to member competition authorities. These working groups are based on voluntary participation and are composed of the officers of member competition authorities. Working groups prepare reports and guidelines so as to provide guidance to practices of member competition authorities.

The ICN has been organizing annual conferences regularly since 2002. The 6th Annual Conference took place in Moscow between May 28-July 1, 2007 and the 7th Annual Conference took place in the Kyoto city of Japan on April 14-16, 2008. The last two annual conferences took place in Zurich, Switzerland between 3-5 June 2009 and in İstanbul, Turkey between 27-29 April, 2010. Annual Conferences have the nature of a platform where the work performed by the ICN within the latest one year is concluded and shared with the public.

The Turkish Competition Authority is a member of the ICN since 2002. The Turkish Competition Authority, which is aware of the importance of the ICN, has been actively participating in the activities of working groups in the recent years with a view to sharing its experience and contributing to outcomes of the work of working groups. As a matter of fact, the leadership of the project on "state monopolies" within the Unilateral Conduct Working Group has been granted to the Turkish Competition Authority in 2006. The report prepared under the project in question has been submitted for the information of the participants in the 6th Annual Conference held in Moscow: See "Report on the objectives of unilateral conduct laws, assessment of dominance and state-created monopolies". Subsequently, the "recommended practices guide" particularly aimed at developing countries and countries in transition has been prepared under the chairmanship of the Turkish Competition Authority in relation to the topic. This guide mentioned that competition law practices of countries aimed at state monopolies should not be different from those practices conducted against private sector undertakings, examined what the advocacy tasks residing with competition agencies should be in liberalization and privatization processes, and has been of a guiding nature about the instruments to be employed in this process: See "Recommended practices on state-created monopolies pursuant to unilateral conduct rules". 

The Turkish Competition Authority was appointed to the co-chairmanship of the Competition Policy Implementation Working Group besides Brazil in 2006. The Turkish Competition Authority was one of the joint reporters of the report about the effectiveness of the decisions taken by competition agencies, which was prepared as a part of the second leg of the effectiveness project conducted under the said Working Group: see Report on the Agency Effectiveness Project Second Phase – Effectiveness of Decisions . The Working Group was renamed as Agency Effectiveness Working Group following the 8th Annual Conference.

As the 9th Annual Conference was held in İstanbul in 2010, the Turkish Competition Authority prepared the Report on Interface between Competition Policy and other Public Policies under the special project. The report was prepared by considering the responses from competition authorities in 33 jurisdictions to a questionnaire that was also prepared within the Turkish Competition Authority. 

“Some of the questionnaires and templates that have been completed within the Turkish Competition Authority with respect to works carried out by ICN are given below with the relevant dates: