In the United States and around the world, there is an intense debate about the proper role of antitrust as applied to technology industries. This course will examine some of the key questions involved in that debate including the role of network effects, Big Data, attention competition, and multi-sided platforms in antitrust legal analysis and innovation policy more broadly. We'll study these issues not just through a legal lens but also with a focus on economics and policy, and with the aid of cases from the start of the computing age (AT&T, IBM), the seminal case of US v Microsoft, and more recent inquiries involving firms such as Google, Facebook, and Amazon. NOTE: This class does not satisfy the Upper-class Writing Requirement. ** A student who fails to attend the initial meeting of a seminar, or to obtain permission to be absent from either the instructor or the Registrar, may be administratively dropped from the seminar. Students who are on a wait list for a seminar are required to attend the first seminar meeting to be considered for enrollment.