Antitrust review is a government-led process that examines proposed business mergers, acquisitions, or collaborations to ensure they do not harm market competition. Regulatory agencies, such as the Federal Trade Commission (FTC) or the European Commission, analyze whether a deal could create a monopoly, reduce consumer choices, or unfairly raise prices. The goal is to protect consumers and maintain a healthy, competitive marketplace. If the review finds that a deal could negatively impact competition, regulators may block the transaction or require changes before approval.