Multistakeholder initiatives (MSIs) such as the Open Government Partnership are an increasingly prominent feature of the development landscape. As MSIs have become more prevalent, so too have questions about their impact. To help close this impact gap, we support in-country reformers as they try to leverage MSIs to solve locally-prioritized challenges, and achieve impact. We use the evidence and insights generated to help MSIs strengthen their effectiveness, by making learning more central to their ways of working. Learn more