This course aims to provide students with a broad overview of the problems that confront businesses as they go global and how different forms of law work to address such problems. Through a series of examples and case studies, the class will explore the legal and policy implications that arise out of cross-border transactions. How do businesses navigate markets that operate very differently than their own home market? We explore how treaties, national laws, and informal norms shape and constrain business decisions. Among the topics to be explored are how businesses deal with issues such as corporate social responsibility, intellectual property protection, corruption, expropriation, privacy, and enforcement of arbitration awards.