Rainer Arnhold Fellows are social entrepreneurs with particularly promising solutions to the big problems in health, poverty, and conservation in developing countries. The program helps them design their work for maximum impact through an iterative process focused on scalability. Fellows are recruited through our network of leaders, thinkers, funders, and doers in the social and private sectors. The course brings Fellows and faculty together for an intensive week to work on design for maximum impact and scalability. Held in a retreat center on the coast in Bolinas, California, the course gives Fellows the rare opportunity to focus completely on their ideas and a systematic way to apply them.