Impact evaluation repository

This repository is an index of all published impact evaluations of development interventions. 3ie curates it to ensure the studies we include meet well-defined inclusion criteria. 3ie first launched the repository in 2014, using systematic search and screening methodologies to populate the database. We undertake regular updates, as well as add records when we identify new studies through other 3ie projects. Each record contains basic information about the evaluation and a link to the published study. 

Latest impact evaluations
Curt Carnemark_World Bank_IER

Repository at a glance

  • The repository holds more than 4,600 records as of June 2018.
  • The top 10 countries where studies have been conducted are India (390), China (281), Mexico (247), Kenya (233), Bangladesh (197), South Africa (194), Brazil (193), Uganda (173), Pakistan (105) and Peru (105).
  • The number of impact evaluations conducted in Brazil, Cambodia, Cameroon, Costa Rica, Malawi and Mozambique has more than doubled since 2014.
  • Central Asia, Central Africa, the Middle East and North Africa continue to be underrepresented.

New article in JDEff: Is impact evaluation still on the rise?

3ie's Shayda Sabet and FHI360's Annette Brown examine data from our repository to highlight new trends in impact evaluation research. The authors used an updated search and screening protocol to identify new impact evaluation studies. They found that the number of studies published between 2010 and 2015 account for almost two thirds of the evidence base. Over half of all studies are from health and education sectors; however, in the last decade, more studies from underrepresented sectors are emerging. Nearly 60 per cent of the studies are from Sub-Saharan Africa and Latin America; however, recent studies are increasingly conducted in underrepresented regions such as the Middle East and North Africa. Read more

3ie populates the repository through a systematic search and screening process using 35 databases, search engines and websites to locate published development impact evaluations. We screen studies found through the search are to ensure they meet the inclusion criteria.

For an impact evaluation to be included, it must be published as a journal article, book chapter, report, or working paper; be conducted in a low- or middle-income country; examine the effectiveness of a specific development intervention; and use an experimental or quasi-experimental estimation strategy 3ie recognizes.

To find out more about 3ie’s search and screening protocol, please visit the links below

First full search (2012–2014)

Second full search (2015–2016)

In addition to our regular updating exercise, we welcome receiving information about new studies that may qualify. If you know of an impact evaluation that you think meets our inclusion criteria, please write to us at database@3ieimpact.org.

  • In Improving Humanitarian Aid, an article in Foreign Affairs, David Miliband and Ravi Gurumurthy (International Rescue Committee) cite the repository as an important source for evidence on the impact of development interventions on tackling poverty in low- and middle-income countries and make a case for conducting more impact evaluations in fragile contexts.
  • Howard White (Campbell Collaboration) and David Raitzer (Asian Development Bank) highlight core concepts, methods and practical rules of thumb on how to implement successful evaluations for technical and non-economist audiences. They praise and point to 3ie’s public goods, including the Registry for International Development Impact Evaluations the Impact Evaluation Repository and our Microsoft Excel-based power calculator and guide as some of the resources evaluators can use. Download the full book, Impact evaluation of development interventions: a practical guide.
  • Anthony Swan, a researcher at Australia National University, uses 3ie’s impact evaluation repository to look at impact evaluations focused on Papua New Guinea and the Pacific Islands. He highlights low demand, issues of external validity and cost of impact evaluations as reasons behind the scarcity of studies. Read the full post: Evaluating impact evaluation in PNG and the Pacific.

Latest impact evaluation repository

Unpacking the determinants of entrepreneurship development and economic empowerment for women in Kenya

Impact evaluation 3ie 2019

Publication type: 3ie final grantee report
Author: David Mckenzie, Susana Puerto, Frank Odhiambo
Sector: Private Sector Development, Business Environment

Enhancing access to index-based weather agricultural insurance in Burkina Faso: a new marketing approach

Impact evaluation 3ie

Publication type: Ongoing 3ie Funded Studies
Author: Harounan Kazianga, Zaki Wahhaj, Alassane Koulibaly, Souleymane Zare
Sector: Agriculture and Rural Development

Bundling weather index-based insurance with loans in Senegal: evaluating impact on insurance take-up and farmers’ well being

Impact evaluation 3ie

Publication type: Ongoing 3ie Funded Studies
Author: Mame Mor Anta Syll, Assane Faye, Hamidou Diop, Moustapha Fall, Seydina Ousmane Sene
Sector: Agriculture and Rural Development

Picture-based crop insurance: evaluating the impact of using smartphone camera data for claims verification in India

Impact evaluation 3ie

Publication type: Ongoing 3ie Funded Studies
Author: Berber Kramer, Francisco Ceballos, Samyuktha Kannan, Uttam Kumar, Azad Mishra
Sector: Agriculture and Rural Development

Uptake and evaluation of innovative insurance-embedded credit for promoting resilience and livelihoods for smallholder maize farmers in Kenya

Impact evaluation

Publication type: Ongoing 3ie Funded Studies
Author: Apurba Shee, Liangzhi You, Patrick Ward, Yanyan Liu, Simon Kimenju
Sector: Agriculture and Rural Development

Creating informed demand and impacts through innovative and cost effective extension in Kenya

Impact evaluation 3ie

Publication type: Ongoing 3ie Funded Studies
Author: Andrew Mude, Nathan Jensen, Duncan D. Khalai, Rupsha Banerjee, Diba D Galgallo
Sector: Agriculture and Rural Development