approach, the book examines the various facets of relationships in cooperatives on a transactional, financial and control level. Further, a case study on the Dutch cooperative Rabobank illustrates what happens when members fail. In turn, part two concentrates on integrating the lessons learned with the existing economic literature on cooperatives, so as to contribute to a theory of cooperative management. Finally, the book links the theoretical approach to practice: in the third part, it reports on the outcomes of using a computerized simulation game to show members of cooperatives how to manage their business and the cooperative business at the same time, enabling them to understand and actively practice two-level entrepreneurship.