This course presents the tools and topics of experimental economics. We will try to present both “classical” experimental economics, based on lab experiments, as well as more recent applications outside the lab: field experiments, randomized experiments, etc. New tools, like neuroeconomics, will also be presented. The course insists on the methodology of experimental economics. It involves a lot of student participation since almost all classes include an experiment played by students. The second half of the course will be adapted to the audience since several topics can be covered according to students' own research interests.