Lecture, three hours. Exposes future change leaders to different business models for social impact and to fundamental opportunities and challenges of designing, funding, managing, and scaling enterprises with social mission. Through lectures, readings, case studies, speakers and research project, exploration of competitive advantages and limitations of different approaches to creating social impact across sectors--private/for profit, public, and nonprofit. Introduction of frameworks for understanding and analyzing problems facing society and cultivation of critical thinking skills to identify diverse ways to address those problems through sustainable programs and enterprises. Letter grading.