The array of competitive tactics employed by companies is constantly expanding, and these tactics often face scrutiny from antitrust authorities. In this course, we will study the variety of ways in which firms compete through price, production, and entry and exit in markets. We analyze firms' motivations (both pro-competitive and anti-competitive) for these strategies, how these strategies are implemented, when they are likely to be effective, and how they are viewed by U.S. antitrust laws. The material will be structured around discussion of well-known antitrust cases, ranging from classic cases in monopolization to the most recent cases in high-tech markets. Central to the course is the Competitive Strategy Game, a simulated interaction among up to eight companies competing in one or more of four possible markets. The game permits application of many of the concepts studied in the course.