Welcome to the CGIAR Impact Assessment website


Call for expressions of interest: Under-evaluated areas of CGIAR research

SPIA is inviting EoIs for ex post impact assessments (epIAs) of under-evaluated areas of CGIAR research, including irrigation & water management, livestock, agroforestry, biodiversity, policy and social sciences, and natural resource management (NRM). More details in this call document and on the activity page.

Open position at CIMMYT

CIMMYT is looking for a Gender and Development Specialist, applications close September 14 2015. Such a specialist will undertake applied research on gender issues in sustainable intensification of wheat and maize-based farming systems, and contribute to strengthening the institutional capacity for integrating gender in wheat- and maize research-for-development. Please see CIMMYT website for more information.

New publications

The evaluation report on CGIAR irrigation and water management research IAs, and associated Impact Brief (#49) is now available. Briefs based on two studies documenting the impact of improved maize varieties on household well-being and overall rural poverty in Ethiopia, and the impact of improved common bean varieties on field-level yields, costs of production, and household farm incomes in Rwanda and Uganda are now out.

The underlying studies are related to work on adoption of 20 food crops across 30 countries in Sub-Saharan Africa, data for which was collected as a part of the Diffusion and Impact of Improved Varieties in Africa (DIIVA) project. DIIVA publications include the Impact Brief No. 42, and the Synthesis ReportWe also recommend the Impact Brief on impacts of legumes research in the CGIAR (#44) and synthesis report.

CGIAR Impact Blog

Feb 2015

In 2014, we directed you to the 3ie database of impact evaluations. Here is another - the American Economic Association's registry for RCTs - one (...

Jan 2015

The EASST Collaborative is inviting researchers living in East Africa to submit research designs focused on the rigorous evaluation of a social or economic development program implemented in the region. Researchers must be based in Ethiopia,...


Illustrative photo

Significant publications of ex post impact assessments (epIAs), both commissioned by SPIA and CGIAR Centers and CRPs showcasing a range of methodological approaches and impacts.

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Map image - click to view publications


ex post Impact Assessments (ex post IAs) of research activities of the CGIAR mapped geographically, with filters for System Level Outcomes (SLOs) and types of research activities. View the map

Strengthening Impact Assessment in the CGIAR (SIAC)

SIAC is a major new initiative from SPIA funded by DFID, the Gates Foundation, and ISPC with a budget of US$ 12 million over 2013-2016 for a range of activities. The key objectives of SIAC are:

  • Methods: Develop, pilot and verify innovate methods for collection and assembly of diffusion data
  • Outcomes: Institutionalize the collection of diffusion data needed to conduct critical CGIAR impact evaluations
  • Impacts: Assess the full range of impacts from CGIAR research
  • Building a community of practice: Support the development of communities of practice for ex post impact assessment within the CGIAR and between the CGIAR and the development community more broadly

Diffusion and Impacts of Improved Varieties in Africa (DIIVA)

There are three major components to this outcomes and impact study which is supported by a 3-year, US$3 million grant from the Gates Foundation.

  • To describe investments in and uptake of crop genetic improvement in priority country-by-commodity combinations in Sub-Saharan Africa (SSA)
  • To verify and gain a deeper understanding about the adoption and diffusion of new varieties in a nationally representative setting of selected priority countries and food crops in SSA
  • To gain a more comprehensive understanding of the impact of crop improvement on poverty, nutrition and food security