Social and Environmental Enterprises examines organizations that place a social mission ahead of or on par with their financial mission. Students in this course take initial steps towards creating a fictional social mission enterprise, using tools such as systems thinking, design thinking, Lean Startup methodologies, impact measurement, and budget development. Once we understand the practical challenges and opportunities of these enterprises, we consider norms and public policies that can help social enterprises succeed--taxation, governance, finance measures, asset locks, and employment rules. We will have several guests over the course of the semester, who will also help us see how these enterprises work and what policies could help them work better.