The SPIA Webinar Series launched in 2021 provides an opportunity for the impact assessment community of practice to jointly reflect on methods and approaches to impact assessment. Webinars will not only focus on completed work, but many of them will be presentations of work in progress. The webinars take place on the 3rd Wednesday of each month, usually around 2 pm CET. The topic of each webinar will be announced on this page as well as on Twitter (@cgiarspia). If you are interested in presenting in one of the webinars and receiving feedback on early-stage work, please contact with a brief description of your impact assessment study or idea. 


Webinar #10: Got (Clean) Milk? Organization, Incentives, and Collective Action in Indian Dairy Cooperatives

The tenth webinar in the series took place on January 19, 2022, at 3pm CET.

Manaswini Rao presented a randomized evaluation of the effect of incentives for clean milk production among dairy cooperatives in rural India.


Manaswini Rao, University of California San Diego


Webinar #9: Adoption, Diffusion and Impacts of Sustainable Agricultural Intensification in Maize-based Smallholder Farming Systems of Zambia

The ninth webinar in the series took place on November 24, 2021.

Hambulo Ngoma presented ongoing work that assesses adoption, diffusion and impacts of sustainable intensification practices in a project in Zambia.


Hambulo Ngoma, CIMMYT




Webinar #8: Harvesting the Rain: The Adoption of Environmental Technologies in the Sahel

The eighth webinar in the series will take place on October 20, 2021, at 1.30-3.00pm CET.

Jenny Aker will present her study of the adoption of demi-lunes, a rainwater harvesting technology, in Niger. The study uses a cluster randomized control trial to test the importance of three types of barriers to adoption of the technology: constraints to information, credit, and labor respectively. The focus of this presentation will be on the use of remote sensing data, on measurement challenges and on methodological learnings.


Jenny Aker, Tufts University



Webinar #7: Reflection on Methods and Metrics Needed to Support Impact Assessment Plans in One CGIAR

The seventh webinar in the series took place on September 15, 2021, at 2.00-3.30pm CET.

Since April 2021, a series of activities have taken place as part of SPIA’s offer to provide advice to One CGIAR Initiative Design Teams (IDT) in the development of their impact assessment plans. These activities have included a webinar to frame the methods and metrics that SPIA would propose to different initiatives, virtual meetings with several IDTs to discuss their draft plans, developing guidance to support the preparation of impact assessment plans in initiatives, and other meetings with IA researchers and Global Science Directors to discuss SPIA strategies to implement its advice.

The seventh session of the SPIA webinar series provided an opportunity for the broad impact assessment community of practice in the CGIAR to participate in a discussion of this process and to identify additional strategies that could improve the advice on methods and metrics for impact assessment in One CGIAR.

Meeting notes are available here.


Additional resources:


Webinar #6: Designing CGIAR impact assessment studies on solar irrigation and livestock vaccines

The sixth webinar of this series took place on June 16, 2021, at 2.00-3.30pm CET.

Yashodha (IWMI) presented the design of an impact evaluation of the SKY (Suryashakti Kisan Yojana) program in Gujarat, India. The program supports the generation of solar electricity by farmers for their own consumption (irrigation) as well for selling back to the grid and generating additional incomes. Guanghong Xu (UCSC/ILRI) presented a randomized controlled trial evaluating the effect of a demand aggregation intervention (in which farmers are encouraged to vaccinate together) cross-cut with a “checkoff system” intervention (in which a percentage of milk sales is set aside at milk cooperatives to be allocated for vaccine purchase) on the adoption of ECF vaccine in 80 dairy cooperatives in Kenya.


  • Yashodha, IWMI
  • Guanghong Xu, University of California, Santa Cruz (UCSC)/ILRI



Webinar #5: Spatial Methods for Evaluating CGIAR Innovations

The fifth webinar of this series took place on May 19, 2021, at 2-3:30 pm CET. 

This webinar featured a joint presentation by Joel Ferguson from the University of California, Berkeley, and Andrea Gardeazabal Monsalve from CIMMYT. The presentation Spatial Methods for Evaluating CGIAR Innovations covered lessons learned during the design and implementation of a study that looked at the relationship between agricultural extension and the reduction of air pollution and infant mortality in Mexico.


  • Joel Ferguson, Agricultural and Resource Economics PhD Student, University of California, Berkeley
  • Andrea Gardeazabal Monsalve, Monitor, Evaluation and Learning Manager - ICT, CIMMYT



Webinar #4: Data Collection for Impact Assessment Studies: Phone-Based Agriculture Extension in Nepal and a Scaling Initiative on Climate-Smart Agriculture in Colombia

The fourth webinar of this series took place on April 21, 2021, at 2-3:30 pm CET.

This webinar featured two case studies from Nepal and Colombia. Muzna Alvi (IFPRI) presented methodological and implementation challenges encountered when using data collected through phone surveys to evaluate phone-based agriculture extension in Nepal. In the context of COVID-19 lockdowns, her project evaluates remotely delivered extension solutions related to fall army worm and integrated pest management. Lina Ibarra (Alliance of Bioversity and CIAT) presented an early-stage project looking at integrating indicators useful for impact assessment in the M&E system of a scaling initiative on climate-smart agriculture for climate change adaptation and sustainability in Colombia.


  • Muzna Alvi, Research Fellow, Environment and Production Technology Division, IFPRI
  • Lina Ibarra, Impact Assessment Economist, Alliance of Bioversity and CIAT



Webinar #3: Designing Remote Sensing Techniques for Evaluating Impact of Stress-Tolerant Rice Varieties

The third webinar of this series took place on March 17, 2021, at 2 pm CET.

In this webinar, Jeff Michler (University of Arizona) together with Val Pede and Renaud Mathieu (IRRI) will deliver a presentation on Designing Remote Sensing Techniques for Evaluating Impact of Stress-tolerant Rice Varieties. The study team focused on highlighting lessons learned during the design of the impact evaluation, the challenges they have faced, and their experience in bringing new methodological developments and implementing this study.


  • Jeff Michler, Assistant Professor, Department of Agricultural and Resource Economics, University of Arizona
  • Val Pede, Senior Agricultural Economist, IRRI
  • Renaud Mathieu, Head, Geospatial Science and Modelling Cluster, IRRI



Webinar #2:  Designing Rigorous Impact Assessments of CGIAR Research

The second session of our monthly webinar series took place on February 17th at 1 pm CET. Participants learnt how to prepare and design rigorous and relevant impact assessments with CGIAR researchers. In this webinar, presenters shared their ideas on how to assess the impact of two CGIAR innovations that have reached the initial scaling phase.

Kelvin Shikuku presented a potential impact assessment of genetically improved tilapia. Tesfamicheal Wossen discussed the preparation for an impact assessment of Aflasafe in Africa.


  • Kelvin Shikuku, Innovation and Scaling Scientist, WorldFish
  • Tesfamicheal Wossen, Economist-Impact Assessment, International Institute of Tropical Agriculture (IITA)



Webinar #1: Lessons for Evaluating the Medium & Longer Term Impacts of CGIAR Informed Innovations That Have Gone To Scale: The Promise of Commons Experience in India

The first webinar of this series took place on January 20th at 1 pm CET. Presenters shared their experience in designing a robust impact evaluation of long-term, large-scale impacts of an institutional innovation in India to strengthen community management of natural resources. The webinar focused on lessons learned during the proposal preparation, the challenges faced, and how the study team overcame them to complete a fundable proposal.


  • Karl Hughes, Impact Evaluation Specialist, World Agroforestry Centre (ICRAF)
  • Ruth Meinzen-Dick, Senior Research Fellow, International Food Policy Research Institute (IFPRI)
  • Pratiti Priyadarshini, Senior Programme Manager, Foundation for Ecological Security (FES)
  • Tor Vågen, Senior Scientist, World Agroforestry Centre (ICRAF)




Interested in presenting in one of our future webinars? Reach out to Mina Karasalo ( with a brief description of your ongoing impact assessment study or idea.