Authors hope to identify those factors which facilitate or obstruct the capacity of PRIs to monitor and evaluate their influence on public policy. To do so, they pose a series of questions: How do PRIs monitor and evaluate the impact of the research they carry out on public policy? How do they measure the influence of the knowledge and evidence they produce in shaping and implementing public policy? Which relevant methodologies does this type of organisation have at its disposal to follow up and evaluate impact on public policy? What are the current capacities of the PRIs involved in the field?