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    We are a mission-driven non-profit organization dedicated to using evidence to transform people’s lives. We collaborate with governments, foundations, NGOs, development and research organizations across the globe.

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    We support governments and development partners to generate and use rigorous evidence that informs better policies, programs and investments. Our work spans the full decision-making cycle, helping identify what works, why it works, and how to improve outcomes.

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Evidence gap maps
Evidence for peacebuilding: an evidence gap map

Evidence for peacebuilding: an evidence gap map

3ie Evidence Gap Map Report 1

Drew B Cameron, Annette N Brown, Anjini Mishra, Mario Picon, Hisham Esper, Flor Calvo and Katia Peterson

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Around 70 per cent of fragile states have seen conflict since 1989 and 30 per cent of official development assistance is spent in fragile and conflict-affected situations. The challenge is to make evidence-informed investments so that peacebuilding interventions can achieve positive impacts, even in situations where development indicators are worsening. 

This report by Drew B Cameron, Annette N Brown, Anjini Mishra, Mario Picon, Hisham Esper, Flor Calvo and Katia Peterson is based on a 3ie evidence gap map (EGM) for the impact evaluation of peacebuilding interventions developed in 2015. It describes the scope and methods for the EGM and the analysis of the information in the map. The EGM reveals two intervention categories, community-driven reconstruction and psycho-social programmes for victims, with a large number of studies that are thus promising for evidence synthesis research. There is little to no evidence available for most of the other 23 categories, while five categories have no completed or ongoing studies.

While we have updated the map since, an offline, excel version is still available for download.

Our new map includes recent studies and highlights gaps that persist. Use the links below to access the latest evidence:

  • Building peaceful societies: evidence gap map (2020)
  • Building peaceful societies: evidence gap map report (2020)
  • Building peaceful societies: brief (2020)
  • The current state of peacebuilding programming and evidence: scoping paper (2015)

Improving labour market outcomes through learning-to-earning interventions in low- and middle-income countries: An evidence gap map

Improving labour market outcomes through learning-to-earning interventions in low- and middle-income countries: An evidence gap map

Evidence gap map 3ie 2026  
This report systematically identifies and organises the evidence base on technical and vocational education and training (TVET) and skills, using a framework covering the full scope of supply-side learning-to-earning interventions and labour market outcomes.

Addressing Root Causes and Drivers of Irregular Migration: Evidence Gap Map 2025 Update

Addressing root causes and drivers of Irregular Migration: Evidence Gap Map 2025 Update

Evidence gap map 3ie 2026  
The authors of this EGM update report map the latest available evidence base and assess the quality of existing systematic reviews on the effectiveness of interventions addressing the root causes and drivers of irregular migration.

Mapping the evidence of climate change and biodiversity interventions on environmental and human outcomes in low- and middle-income countries

Mapping the evidence of climate change and biodiversity interventions on environmental and human outcomes in low- and middle-income countries

Evidence gap map 3ie 2024  
The authors of this report present the findings of an evidence gap map that includes studies evaluating the effects of climate change and biodiversity interventions on environmental and human wellbeing outcomes.

The evidence on food systems and nutrition: insights from a living evidence and gap map,

The evidence on food systems and nutrition: insights from a living evidence and gap map

Evidence gap map 3ie 2024  
The authors of this report analyze findings of impact evaluations and systematic reviews that assess the effects of food systems interventions on food security and nutrition outcomes.

Interventions to reduce anaemia in low- and middle-income countries: An evidence gap map

Interventions to reduce anaemia in low- and middle-income countries: An evidence gap map

Evidence gap map 3ie 2024  
The authors of this report map available impact evaluations and systematic reviews of interventions that aim to reduce anaemia in low- and middle-income countries.

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  • DOI : 10.23846/EGM001

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