Abuse of dominance occurs when a company with significant market power uses its position to unfairly restrict competition, harm consumers, or maintain its dominance. This can include practices such as predatory pricing, exclusive agreements, or refusing to deal with certain customers or suppliers. Such behavior is often regulated by competition laws to ensure markets remain fair and open. Abuse of dominance can stifle innovation, limit consumer choice, and lead to higher prices, making it a key concern for regulators and policymakers.