3ie Research Fellows Program

The Research Fellows Program brings together experts from diverse backgrounds to provide intellectual leadership and technical support to strategic areas for 3ie. Our fellows work with our global team and are uniquely positioned to lead or support new and ongoing initiatives and programs in their area of expertise. 

Senior Research Fellows

Anjini Kochar
Anjini Kochar is a 3ie senior research fellow. She served as Director of the India Program at the Stanford Center on Global Poverty and Development from 2000 to 2019. Prior to joining the Stanford Center on Global Poverty and Development, she was an Assistant Professor in the Department of Economics at Stanford University.  Read more

Ahonali Patrice Gbaguidi
Gbaguidi is an independent senior consultant working as a program/project evaluator as well as a financial analyst. He held the position of Director of the Department for the Evaluation of the Development Results of Funded Projects (Monitoring & Evaluation) at the West African Development Bank (BOAD in French) from 2012 to 2020.  Read more

Arnab Acharya
Arnab Acharya is a 3ie Senior Research Fellow with more than 25 years of experience in teaching and research in health economics and development economics. He has held academic positions in India, the United Kingdom, and the United States, including at the London School of Hygiene and Tropical Medicine for six years.  Read more

Beatriz Godoy
As a consultant to government entities and international organizations, Beatriz has participated in the design, implementation, and quality assurance of national surveys on Income and Expenditure, Nutrition, Standard of Living, and Family Budgets in Africa, Eastern Europe, Asia, the Middle East, and Latin America. Read more

Christoph Zürcher
Christoph Zürcher is a 3ie senior research fellow and a professor at the Graduate School of Public and International Affairs at the University of Ottawa. Christoph has also worked with the University of Konstanz, Germany, the Institut d’études politiques d’Aix-en-Provence, and Freie Universität Berlin.  Read more

David D Ferguson
David Ferguson is a 3ie senior research fellow and runs a boutique consultancy that operates at the intersection of international development, creating evidence of what works, and building partnerships to support innovative, collaborative programs to solve complex challenges.  Read more

David de Ferranti
David de Ferranti is a Senior Fellow at 3ie. From 2019 through 2022, he was Director of 3ie’s Washington Office and served as a member of our senior management team, providing strategic advice and direction, leading initiatives on business development and partnerships, and contributing to evaluation programs and other technical work. Read more

Emmanuel Jimenez
Emmanuel (Manny) Jimenez is an economist who is currently a non-resident senior research fellow at 3ie. Most recently, after five years Manny stepped down as 3ie’s executive director in January 2020.  Read more


Godfrey Musuka
Godfrey Musuka is ICAP - Columbia University’s Country Director in Zimbabwe. He is an HIV/AIDS M&E and public health expert with 25 years of experience implementing health interventions in Zimbabwe, Botswana, and Nigeria. Read more

Gonzalo Hernández Licona
Gonzalo Hernández Licona is a 3ie senior research fellow. He is currently the director of the Multidimensional Poverty Peer Network (MPPN-OPHI), where he coordinates 60 countries and 19 international institutions to advance and exchange ideas about implementing Multidimensional Poverty Indicators. Gonzalo also works with UNICEF on country-led evaluations.  Read more


Jennifer Stevenson
Jen Stevenson is a 3ie Senior Research Fellow with more than 10 years’ experience working on the generation and synthesis of evidence to inform policy. She is currently an independent consultant working on commissioning and undertaking of impact evaluations and synthesis in education and other areas of social policy for a number of non-governmental organizations.  Read more

Johannes Linn
Johannes Linn is a 3ie senior research fellow. He is an economist and currently a non-resident senior fellow at the Brookings Institution, distinguished resident scholar of the Emerging Markets Forum and senior advisor at the Results for Development Institute (R4D). Read more

John Cropper
John Cropper is a 3ie senior fellow with 25 years of expertise in NGO program and project management. His work focuses on helping NGOs to improve the ways they design, plan, manage and deliver programs and projects.  Read more


John Eyers
John Eyers is a 3ie senior research fellow with 40 years of expertise in information access and retrieval. His work focuses on constructing complex database search strategies for systematic reviews, evidence gap maps and rapid evidence appraisals, and reviewing search methods for the Campbell Collaboration. He has also run search methods workshops in various parts of the world including Afghanistan, India, Bangladesh, Malawi, Nigeria, Tanzania, Kenya, Uganda, Mali as well as in various European countries. Read more

Josh Furgeson
Josh Furgeson is a 3ie senior research fellow with more than 15 years of experience in program evaluation and systematic reviews. His work focuses on impact evaluations, qualitative implementation analyses, and systematic reviews. Read more


Joshua R Polanin
Joshua R Polanin is a 3ie senior fellow and a principal researcher in the Research & Evaluation program at American Institutes for Research (AIR). He has extensive experience in quantitative methodology and has published over 50 peer-reviewed journal articles across education, criminology, public health, and methodology, including more than 20 peer-reviewed, published meta-analyses. Read more

Juan Munoz
Juan is a senior fellow at 3ie. He has devoted his professional career to the design and implementation of household, impact evaluation business and agricultural surveys. As a founding member of Sistemas Integrales, a leading company in the field since 1970, participated in the development of ARIEL, one of the first-ever statistical packages, and other survey-support applications. Read more

Liz Brown
Liz Brown is a senior research fellow at 3ie and currently a staff scientist at Center for Effective Global Action (CEGA) at UC Berkeley where she leads the Cost Transparency Initiative to improve and scale the use of high-quality cost evidence in impact evaluation research.  
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Laurenz Langer
Laurenz is a 3ie senior research fellow. He is currently the senior researcher and the evidence synthesis portfolio lead for the Africa Centre for Evidence (ACE) at the University of Johannesburg. Laurenz’s work at ACE involves supporting national government decision-makers to integrate evidence from research syntheses (e.g. evidence maps, systematic reviews, and meta-analyses) in the formulation and design of public policies and programmes.
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Michael Bamberger
Michael Bamberger is a 3ie senior research fellow. Since retiring from the World Bank in 2000 he has been an independent development evaluation consultant. He has consulted with 10 UN agencies, multilateral and bilateral development agencies, development banks, foundations, NGOs, and governments on the evaluation of development policies and programs. Michael has spent more than 40 years evaluating development programs in Africa, Asia and Latin America, including 25 years as a senior sociologist with the World Bank. 
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Maren Duvendack
Maren Duvendack is a 3ie senior research fellow with 15 years of expertise in development economics. Her work focuses on applied micro-econometrics, impact evaluation, systematic reviews and meta-analysis, microfinance as well as replication and reproduction of quantitative analyses. She is particularly interested in the link between microfinance, women’s empowerment and reproductive health. Read more

Marta Moratti
Marta Moratti is a 3ie senior research fellow with more than 15 years’ experience working on the generation, analysis and communication of research and evaluations to inform policy. Her work focuses on poverty, inequality and wellbeing both in international development and in the UK. She is currently an independent consultant working on evaluation, evidence synthesis and research uptake; Read more

Mario Navarette
Mario is a partner at Sistemas Integrales. For three decades, he has contributed to the design and analysis of large-scale surveys in Africa, Latin America, the Caribbean, Europe, and the Middle East. Mario's participation in these projects has included sampling, data quality assurance, questionnaire design and organization of fieldwork, implementation of biomarker tests, monitoring of quality indicators. Read more

Nicholas Burnett
Nicholas Burnett is an independent consultant and Senior Research Fellow at the International Initiative for Impact Evaluation (3ie), along with Results for Development (R4D). He was previously Managing Director at R4D (where he founded the Global Education Practice), UNESCO Assistant Director-General for Education, Director of the UNESCO Education for All Global Monitoring Report, and World Bank Human Development Manager for West and Central Africa. Read more

Patty Chang

Patty Chang is a 3ie Senior Research Fellow and an Adjunct Associate Professor at the Graduate Program in International Relations at New York University. She is a practitioner and researcher focusing on international and sub-national security, particularly the dynamics of major civil wars, illicit weapons trafficking, peace negotiations, and the management of armed conflict by international organizations. Read more

Paul Ferraro
Paul Ferraro is a 3ie senior fellow and Bloomberg Distinguished Professor of Human Behavior and Public Policy at Johns Hopkins University. Drawing on multiple disciplines and methodologies, Ferraro collaborates with scientists, lawyers, engineers, and program administrators to develop evidence-based environmental programs and to understand causal relationships, both natural and anthropogenic, in complex environments. Read more

Rhona Mijumbi-Deve
Rhona Mijumbi-Deve is a 3ie senior research fellow. She is currently a senior research scientist and the founding director of the Center for Rapid Evidence Synthesis (ACRES) at Makerere University in Uganda. Rhona’s work involves advisory support to all levels of government ranging from districts to the Office of the President and similar support to other countries in Africa, Latin America, Asia and Eastern Europe. Read more

Sean Grant
Sean Grant is a 3ie senior research fellow with nearly a decade of experience in evidence synthesis, research transparency, and intervention science. Dr Grant's work aims to advance the credibility of intervention research and its utility for supporting evidence-based policy and practice. He primarily focuses on interventions for behavioral health, though he is interested in intervention research across the behavioral, social, and health sciences. Read more

Sonia Chand Sandhu
Sonia is a development practitioner with 30 years of international experience, with demonstrated leadership in environment, climate and urban resilience operations, institutional analysis, knowledge management, and capacity development at Asian Development Bank (ADB) and the World Bank.  Read more

Sudhanshu Handa
Sudhanshu (Ashu) Handa is a 3ie senior research fellow and Kenan Eminent Professor of Public Policy at the University of North Carolina at Chapel Hill. A trained economist, Ashu is one of the principal investigators of The Transfer Project, an initiative in partnership with UNICEF and FAO to document the wide-ranging impacts of government sponsored cash transfer programs in Sub-Saharan Africa.
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Tari Turner
Tari Turner is a 3ie senior research fellow and is currently an associate professor (research) at Cochrane Australia, Monash University. Tari’s passion is supporting evidence-based decision-making to ensure the best possible outcomes, particularly for women and children in low resource settings. She enjoys designing, finding, synthesising and communicating research, and she loves seeing research actually make a difference.Read more

Teresa Reinaga
Teresa is a partner at Sistemas Integrales. She has more than 12 years of experience in the public sector, mainly in the design of social policies and systems to monitor the effects of social public policies focusing on education and poverty reduction. Read more


Vibecke (Beckie) Dixon
Vibecke (Beckie) Dixon is a 3ie senior research fellow and an independent development evaluation consultant. Beckie has specialised in peer reviews and assessments of organisational and national evaluation systems and has spent more than 20 years evaluating development programs in Africa, Asia and Latin America. She has consulted with several UN agencies, multilateral banks, and governments on their evaluation systems and on development policies and programs. Read more

Vegard Iversen
Vegard Iversen is a 3ie senior research fellow with more than 25 years of experience teaching and researching development. He is currently a Professor of Development Economics and Head of the Livelihoods and Institutions Department at the Natural Resources Institute (NRI), University of Greenwich. He joined NRI from Indian Institute of Management Ahmedabad where he was a professor (Economics Area).
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Research Fellows

Pablo Celhay
Pablo Celhay is a 3ie research fellow and an Assistant Professor at the Government School and Department of Economics at the Pontificia Universidad Católica de Chile. His research and teaching interests include health economics, development economics and impact evaluation methods. Pablo’s regional focus is on the Latin American and the Caribbean region with field and research experience in Argentina, Bolivia, Chile, Dominican Republic, El Salvador, Mexico, and Nicaragua. Read more


Since its inception 3ie has been at the forefront of innovation in impact evaluations, systematic reviews, and evidence gap maps. We have been able to do so with limited staff by drawing extensively on outside experts. It is now time to reward and further encourage their commitment to our mission by offering them the visibility of our fellowship program. We also think we should be transparent about who is working with us.

Marie Gaarder
executive director