The document discusses six key lessons learned by the Overseas Development Institute about enhancing the impact of research on policymaking:
1. Policy processes are complex with many actors and stages that do not always follow a linear process.
2. Research-based evidence often plays a minor role in policymaking compared to other factors like values, experience, and pragmatism.
3. It is possible for research to contribute to impactful policies through understanding contexts and building relationships between researchers and policymakers.