Willem van Winden is a Professor at the Amsterdam University of Applied Sciences, and director of the Centre for Economic Transformation (CET). He leads a research group where action research is conducted on complex urban innovation projects involving multiple stakeholders: smart city projects, circular economy initiatives, positive energy districts, and developing campus areas/innovation districts. The red thread in this work is always about how stakeholders can jointly achieve successful and scalable innovation. In recent years he has have been thinking more and more from regenerative principles and Donut Economics: how can (urban) innovations be developed and scaled up that contribute to a sustainable and social society? How do you put positive social and environmental impacts at the center of the approach? What new roles are stakeholders given? What new business models fit the bill?