In recent years, inequality has grown worse worldwide. Recent studies have pointed out weakening market competition and deepening industrial concentration as one of factors for this phenomenon. Therefore, the role of competition policies in promoting market competition should also be considered as a countermeasure against deepening inequality beyond the traditional view about competition policies. Against this backdrop, we empirically analyze cases of the US, the EU and Korea, and then propose a competition policy direction to achieve inclusive and innovative growth pursued by the Korean government.