'This volume makes a significant contribution to scholarship on global governance. It traces the 'power of standards' and its connections to 'hybrid authority'. Steering clear of simplifications, the volume emphasizes the generic ambiguity of the standards that define the status of public and private actors, the issues and the spaces of global governance that in turn redefine the standards. The volume does this moving from an overarching analysis of the trade in services, to an analysis of the insurance industry and the outsourcing of business processes to India. Graz offers a refreshingly non-dogmatic, empirically grounded engagement with the questions surrounding who governs, how and with what implications in the contemporary world.' Anna Leander, Institut de hautes études internationales et du développement, Geneva