Lecture, three hours. Requisite: course 101. Enforced corequisite: course 171L. Recommended requisite: course 103. Preparation: calculus. Designed to give foundation in topics within field of industrial organization relating to regulation of monopoly power within economy and different way that that manifests across firm conduct and industrial settings. Particular attention to topics in antitrust policy, with some exploration of intersection between economics and law. Topics include in-depth analysis of cartels and mergers, including abstract theory and specifics of analytical approaches deployed in enforcement by Department of Justice and Federal Trade Commission. P/NP or letter grading.