The author analyzes the foundations that enable the State to design and enforce certain regulations, particularly the competition law, consumer protection, intellectual property and the protection of personal data. The author reviews the market failures that justify state intervention through such regulations. The author seeks to show the convenience of using market failures for the determination of the objective scope of each of said regulations and the jurisdiction of the state agencies with competence in same. The author ends the study with conclusions and some suggestions for the determination of the law and jurisdiction for the case that it is preliminarily identified that the alleged infraction seeks to exploit more than one market failure.