This document discusses the role of research in policy making. It begins by outlining the policy formulation process and explaining the difference between experience-based and evidence-based policy making. It then defines policy research, describing its pragmatic and action-oriented nature. The document identifies different types of policy research and their uses in the policy making process. It also examines problems with linking research to policy, such as ensuring relevance and accessibility of research. Finally, it concludes that cooperation between researchers and policy makers is needed to understand needs and improve communication of research for evidence-based policy.