This chapter examines the effects of algorithm-driven horizontal and vertical anticompetitive collusive conduct through the lens of competition law in a number of jurisdictions. It finds that existing antitrust law is able to address some conduct, but that other forms of restraint which are algorithmically driven and facilitated by platform business models may require a change in competition law. The chapter analyses current application of competition law in a number of jurisdictions and provides recommendations as to the form of changes required.