September 2015 — While equal access to quality education is the fundamental principle driving the education development agenda in the post-2015 world, information on inequality and its effects is limited. This fact sheet outlines The Last Barrier Research Initiative, implemented by FHI 360’s Education Policy and Data Center. The initiative seeks to build a comprehensive understanding of inequality and develop an evidence base on achieving greater equity through education policy and systems. The initiative brings together researchers, practitioners and advocacy organizations to ensure that the research is rigorous, well-grounded and shared with those in positions to make or influence change.