The co-ordination of the competition policy in a regional dimension is a developing domain of an inter-state cooperation as well as scientific research. This issue is also closely linked with the problem of liberalisation of international trade, which was confirmed by adopting so-called Singapore issues in 1996. The harmonization of competition law does not characterise highly developed regional groupings only, but it also takes place more and more often in developing regions. The paper addresses the specificity of such a co-operation and experiences gained by the Association of Southeast Asian Nations (ASEAN). The author analyses theoretical and practical
premises of co-ordinating competition policy in ASEAN as well as barriers and perspectives of possible success.