Legal Implications of the Interrelationship Between Antitrust and International Trade in North America

: A comparative analysis was used to assess the antitrust and international trade rules between Mexico, the United States and Canada. We observed a positive quantitative correla-tion between the volume of regional trade and the entry into force of competition and trade legislation in North America. Additionally, we use the deductive method to identify the legal implications of the interrelation of the subjects under study. We conclude that the commer-cial regulation should adopt a transversal approach to competition to maximize both national and regional social welfare, within the framework of the USMCA. In addition, it is suggested to standardize administrative and judicial criteria in matters of competition to make North America a more predictable economic region in legal terms, reforming potentially distorting legislation of productive efficiencies, such as the Webb-Pomerene Act of the United States.