Making ideas count in policy has become a key issue for both researchers and policy-makers, and in both developed and developing countries. This volume provides a coherent examination of how, why and to what extent research informs policy in the field of international development. Drawn from think-tanks, academia and development agencies, the contributors provide case histories of how research has informed local, national and global policy. They investigate how development agencies have promoted the development potential of research, and outline various methods and techniques of policy entrepreneurship.