This book provides unique insights into the role of policy capacity in policymaking and policy change, as it is being uncovered at the research frontier in contemporary policy studies. The book is structured into a series of sections on policy capacity in theory and practice, each focusing on a specific aspect of policy capacity and its influence on policy formulation, decision-making, implementation and evaluation. In addition to making a significant contribution to the body of literature on the theoretical approaches to researching the role of capacity in policymaking, it also provides practical examples of the application of these approaches through a variety of national and sectoral