Abuse of dominance is a core concept within competition and antitrust law that investigates the prohibited conduct of entities holding a dominant position in a relevant market. It scrutinizes specific practices lacking objective justification that distort competition, thereby examining their market effects and the legal frameworks designed to prevent such distortions and protect consumer welfare. Research in this field analyzes the criteria for establishing dominance, the diverse forms of abusive conduct (e.g., exclusionary or exploitative practices), their economic impact, and the effectiveness of regulatory interventions.