Steve is Associate Professor in Operations Management at the Saïd Business School. His research addresses process improvement and supply chain management. Within these areas, the focus of his recent work has been the application of the Toyota Production System (TPS) in medical care, and in the development of an underlying theory of provenance within supply chains which provides the foundation for understanding reputation and ethics within supply chains. Steve’s broader interests include the effectiveness of public sector services, and the social construction of value.