This up-to-the-minute antitrust casebook (with 2019 Update) is rich with political economy, economics, global perspective, and in general the analytics of solving contemporary antitrust problems in the United States and the world. Useful in a 3 or 4-credit course and as a desk book, the volume features all of the landmark U.S. antitrust cases, the evolving new economy and big data/information technology developments, and references to contrasting and converging European, South African and other jurisprudence. It offers a clear presentation of the tools for analysis, examining assumptions that may influence outcomes. The work is unique in its probing questions that explore the line between hard competition and abuse of power, and its problem sets for analysis and debate.