This course explores various topics in economic policy, with a clear microfocus on firm and consumer responses to governmental interventions. Starting from recent empirical evidence, we will discuss stimulus policies (e.g. cash-for-clunker programmes) and Germany's temporary VAT cut. We will also analyse the regulation of the housing market (e.g. price controls) as well as topics related to the sharing economy. All questions will be approached based on research papers employing state-of-the-art empirical tools that are common in quantitative impact assessments and policy analyses.