Evidence gap maps

Our gap maps are thematic collections of existing evidence from impact evaluations and systematic reviews about effects of international development policies and programmes. The reports provide all of the supporting documentation, including the background information, methods and results, protocols, and analysis of what the map results mean.

Latest evidence gap map reports

Evidence gap map reports

Promoting Sustainable Energy Development through Access, Renewables and Efficient Technologies: An Evidence Gap Map

Evidence gap map 3ie PDF icon 2024  
This report presents the findings of a systematic search to identify and map the impact evaluations and systematic reviews of interventions that aim to promote sustainable energy in low-and middle-income countries. This map was commissioned by Sustainable Energy for All (SEforALL).

Sexual and reproductive health and rights in low- and middle-income countries: An evidence gap map

Evidence gap map 3ie PDF icon 2024  
This report provides an overview of the available impact evaluations and systematic reviews on the effects of sexual and reproductive health and rights (SRHR) interventions in low-and middle-income countries. This map was commissioned by the German Institute for Development Evaluation (DEval) with funding from the German Federal Ministry for Economic Cooperation and Development (BMZ), and Co-Impact.

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

Evidence gap map 3ie PDF icon 2023  
The authors of the report systematically describe the available evidence on interventions that address the root causes of irregular migration in low- and middle-income countries. This map was commissioned by the International Organization for Migration (IOM) through USAID’s project, Addressing the Root Causes of Irregular Migration in Guatemala.

Land-use change and forestry programmes in low- and middle-income countries: an evidence gap map update

Evidence gap map 3ie PDF icon 2024  
The authors of this report map the latest impact evaluations and systematic reviews of interventions on land-use change and forestry programmes. This work was commissioned by UK’s Department for Environment, Food and Rural Affairs (Defra).

Strengthening good governance in low- and middle-income countries: an evidence gap map

Evidence gap map 3ie PDF icon 2023  
Authors of this report present findings from an evidence gap map of interventions that aim to strengthen governance effectiveness in low-and middle-income countries.

Promoting political competition through elections in low- and middle-income countries: an evidence gap map

Evidence gap map 3ie PDF icon 2023  
Authors of this report presents the findings of a systematic search to identify and map the evidence base of impact evaluations and systematic reviews of interventions that aim to promote political competition effectiveness in low- and middle-income countries.

Agriculture-led Growth in Low- and Middle-income Countries: An Evidence Gap Map

Evidence gap map 3ie PDF icon 2023  
This report provides an overview of the available impact evaluations and systematic reviews on agriculture-led growth interventions to support decision-making in global agricultural development. This map was commissioned by USAID’s Bureau for Resilience and Food Security.

Food systems and nutrition: Describing the evidence from 2000 to 2023

Evidence gap map 3ie PDF icon 2023  
The authors of this report map the latest impact evaluations and systematic reviews that assess the effects of food systems interventions on food security and nutrition outcomes in low-and middle-income countries. This is a mid-term report that provides an overview of the evidence up to January 2023.

Addressing the systemic causes of malnutrition: The nutrition-sensitive agriculture evidence gap map

Evidence gap map 3ie PDF icon 2023  
The authors of the report systematically describe the available evidence on the effects of nutrition-sensitive agriculture interventions across food systems in low-and middle-income countries. This map was commissioned by USAID’s Bureau for Resilience and Food Security.

Strengthening resilience against shocks, stressors and recurring crises in low- and middle-income countries: an evidence gap map

Evidence gap map 3ie PDF icon 2023  
Authors of this report map the available evidence base of impact evaluations and systematic reviews of interventions that aim to improve resilience in low-and middle-income countries. This evidence gap map was commissioned by USAID’s Bureau for Resilience and Food Security.