The course introduces students to the quantitative evaluation of public policies. The focus of the course is on practical applications of techniques to test the effectiveness of public policy interventions. The course begins with an overview over the key benefits of randomized experiments in the evaluation of public policies. Next the course covers a number of techniques that are widely used in the evaluation of public policies, including difference-in-differences regressions, regression discontinuity approaches and matching. It concludes with an introduction to cost-benefit analysis.