This course complements ECON2126 and ECON3124 (prior participation in those is highly recommended) and is meant to deepen students' understanding of the experimental method of investigation in economics research. In the first half of the course we will review questions of experimental design and implementation such as appropriate procedures of subject recruitment, programming tools, statistical and econometric analysis of experimental data, and other methodological issues in experimental economics. Further, we will survey the topics covered by current research into experimental and behavioural economics, as well as the main results and conclusions. In the second half of the course, students will form groups of 2 or 3 and develop their own experimental project, from design over programming and the actual implementation to the analysis and write-up of a research paper. Grading will rely on class participation, exam and the research paper.