Competition rules eu rules on cartels market dominance mergers and state aid how to report anti competitive behaviour antitrust antitrust policy in the eu procedures in anticompetitive case procedures in abuse of dominance case. Database of competition cases dealt with by the european commission antitrust cartels mergers state aid liberalisation. The court of justice has shown itself to be a driving force of the european integration process 1 general practice its judgment of 15 july 1964 in the costa enel case was fundamental in defining european community law as an independent system taking precedence over national legal provisions similarly its judgment of 5 february 1963 in the . An anti competitive practice is a viable attempt to prevent or reduce competition in a market the term suggests use of significant power and typically only applies to a dominant competitor or government the following are illustrative examples dumping a government subsidies farmers to produce a commodity this causes farmers to produce a large surplus which they end up exporting the price