This course, structured in a lecture/discussion format, is about the interaction — in both directions — between law and various theories or conceptions of the market. As such, it involves examining basic economic ideas (all of which will be built up from scratch), as well as broader ideas about the market that may surface in the law. The course will include some history of economic thought, and some examination of the formation of relevant legal ideas (e.g., the modern idea of the business firm). The ultimate goal of the course, however, is to equip participants to think critically about how the law interacts with economic concepts in concrete ongoing situations, including current policy debates. Legal and policy areas or issues from which we are likely to draw in the second half of the semester may include: contracts, property, antitrust, labor, the law of money and banking, recent economic crises, and international questions. The course does not require any background in economics; relevant concepts will be built up from scratch. At the same time, students with such a background should not find the course repetitive, and ideally will find it enriching.