By charting a renewed agenda for more useful, responsive, and relevant impact evaluation that elevates the perspectives of government policymakers and other evidence users around the world, we can reinvigorate policy commitment to, and funding for, rigorous evaluation. With more and better funding,...

Gavi’s mission—saving children’s lives and protecting people’s health by increasing equitable use of vaccines—remains highly relevant. Gavi 5.0 needs a new model to deliver on its laudable mission. This overview note lays out five challenges and summarizes some of ...

In many low- and middle-income countries, lifesaving health products are either unavailable or beyond the reach of the people who need them most.