How will we ever learn? Towards a sustainable evidence infrastructure

Birte Snilstveit, Marie Gaarder, Carson Christiano, Jo Weech 18 February 2026 blog  
Over the past two decades, the volume of rigorous impact evaluation evidence has grown dramatically. This is a major success for the evidence-informed development community. Yet despite this growth, synthesizing this evidence in systematic reviews and meta-analyses that provide clear and reliable findings for decision-making remains slower, more expensive, and more fragmented than it should be.

Updates to the irregular migration evidence gap map and implications for policy and research

Sanghwa Lee, Maria Daniela Anda Leon, Pierre Marion, Shannon Shisler, Carolyn Huang, Anil Thota 13 February 2026 blog  

Policymakers, researchers and practitioners now have access to the most up-to-date rigorous evidence base on interventions addressing root causes and drivers of irregular migration, a field in which research continues to grow. The evidence base is available in our evidence gap map (EGM), first published in 2023, now updated with support from the Policy and Operations Evaluation Department (IOB) of the Netherlands Ministry of Foreign Affairs.

What indices fail to tell us: Food hygiene and dietary shift among rural women in Rajasthan

Abhinav Dubey 05 January 2026 blog  

3ie’s multi-year evaluation of one of the world’s largest poverty-alleviation programs, i.e. India’s Deendayal Antyodaya Yojana-National Rural Livelihoods Mission (DAY-NRLM), has generated rich evidence on how self-help groups and their federations are reshaping women’s economic opportunities in rural India.