Coordinator, IPORA
Senior Fellow, Institut Universitaire de France
Affiliated professor, J-PAL
tanguy.bernard'at'u-bordeaux.fr
“The Future in Mind: Aspirations and Long-term Outcomes in Rural Ethiopia”, with Stefan Dercon, Kate Orkin, Giulio Schinaia and Alemayehu Seyoum Taffesse, The Quarterly Journal of Economics, 2026
"Buyers' response to third-party quality certification: Theory and evidence from Ethiopian wheat traders", with Gashaw Abate, Erwin Bulte, Jérémy Do-Nascimento-Miguel and Elizabeth Sadoulet, American Journal of Agricultural Economics, 2025
"Cost-effectiveness and budget impact of decentralising childhood tuberculosis diagnosis: a mathematical modelling study in six high tuberculosis incidence countries", with Marc d'Embée et al., eClinicalMedicine, 2024.
"Gimme Shelter. Social distancing and Income Support in times of Pandemic", with Ulugbek Amijonov and Olivier Bargain, European Economic Review, Volume 157, August 2023
Short piece on VoxEU: https://voxeu.org/article/poverty-and-exposure-covid-19-role-income-support"
Impact of small farmers' access to improved seeds and deforestation in DR Congo", with Sylvie Lambert, Karen Macours, and Margaux Vinez. Nature Communications - Article. 14:1603, 2023
"Accelerating technical change through video-mediated agricultural extension: Evidence from Ethiopia", with Gashaw Abate, Simrin Makhija and David Spielman. World Development, vol 161, 2023
"Cheap talk and coordination in the lab and in the field: collective commercialization in Senegal", with Fo Kodjo Aflagah and Angelino Viceisza, Journal of Development Economics, 2022
Longer version: NBER working paper 26045, July 2019
"Introducing quality certification in staple food markets in Sub-Saharan Africa: Four conditions for successful implementation", with Gashaw Tadesse Abate, Alain de Janvry, Elisabeth Sadoulet, and Carly Trachtman, Food Policy, 2021
"Building trust in rural producer organizations: results from a randomized controlled trial", with Markus Frölich, Andreas Landman, Pia Unte, Angelino Viceisza, Fleur Wouterse, Agricultural and Resource Economics Review, 2021
"What do intra-household experiments measure? Evidence from the lab and field", with Jessia Hoel and Melissa Hidrobo, Journal of Economic Behavior and Organization, 2021
"Is the local wheat market a ‘market for lemons’? Certifying the supply of individual wheat farmers in Ethiopia" with Banawe Anissa, Gashaw Abate and Erwin Bulte, European Review of Agricultural Economics, 2021
"Ask me why: Using vignettes to understand patterns of intrahousehold decision making in rural Senegal", with Cheryl Doss, Melissa Hidrobo, Jessica B. Hoel, Caitlin Kieran. World Development, 2020
Comments by Markus Goldstein on World Bank's Development Impact blog,
Blog on the Policies Market and Institutions program website of the CGIAR
"Revisiting farm size-productivity relationship: New empirical evidence from Ethiopia", with Solomon Wassie and Gashaw Abate, Agrekon, 2019.
"Correlated Non-Classical Measurement Errors, ‘Second Best’ Policy Inference and the Inverse Size-Productivity Relationship in Agriculture", with Kibrom Abay, Gashaw Abate, and Chrys Barrett, Journal of Development Economics., 2019.
"Parental Aspirations for Children’s Education: Is There a “Girl Effect?” Experimental Evidence from Rural Ethiopia", with Stefan Dercon, Kate Orkin and Alemayehu Seyoum Taffesse, American Economic Review P&P, 2019.
"Nutrition-based incentives in dairy contract farming in Northern Senegal", with Melissa Hidrobo, Agnès Le Port and Rahul Rawat, American Journal of Agricultural Economics, 2018 Summary on IFPRI
“The Impact of the Use of New Technologies on Farmers' Wheat Yield in Ethiopia: Evidence from a Randomized Control Trial”, with Gashaw Abate, Alan de Brau and Nick Minot, Agricultural Economics, 2018 Summary by Reuters Foundation
"Expected Product Market Reforms and Technology Adoption by Senegalese Onion Producers." With Alain de Janvry, Elisabeth Sadoulet and Samba Mbaye, American Journal of Agricultural Economics; 2017. Summary on Voxdev
“Delivery of iron-fortified yoghurt, through a dairy value chain program, increases hemoglobin concentration among children 24 to 59 months old in Northern Senegal: a cluster-randomized control trial”, with Agnes Leport, Melissa Hidrobo, Rahul Rawat, Ousmane Birba and Marie Ruel, Plos One ; 2017
“Will video kill the radio star? Assessing the potential of video-based interventions”, with Kate Orkin and Alemayehu Seyoum Taffesse, World Bank Economic Review, 2015
“Social Interaction Effects and Connection to Electricity: Experimental Evidence from Rural Ethiopia”, with Maximo Torero, Economic Development and Cultural change, 2015
“Aspirations: an approach to measurement with validation using Ethiopian data”, with Alemayehu Seyoum Taffesse, Journal of African Economies 2014.
“Returns to Scope? Smallholders commercialization through multipurpose cooperatives in Ethiopia", with Alemayehu Seyoum Taffesse, Journal of African Economies 2012
“Impact Evaluations: a tool for accountability? Lessons from experience at AFD”, with Jocelyne Delarue and Jean-David Naudet Journal of Development Effectiveness 2012
“Do Community Sharing Norms Constrain the Emergence, Configuration, and Activities of Market-Oriented Organization ? A Study for Burkina Faso”, with Alain de Janvry and Elisabeth Sadoulet, Economic Development and Cultural Change, 2010.
“Impact analysis of rural electrification projects in Sub-Saharan Africa”, World Bank Research Observer. 2010
“The Burkinabè Cotton Story 1992-2009: Sustainable Success or another Red Herring?”, with Jonathan Kaminski and Derek Headey”, World Development. 2010
“Do Village Organizations make a difference in African rural development ? A study for Senegal and Burkina Faso”, with Alain de Janvry, Marie-Helene Collion, Pierre Rondot and Elisabeth Sadoulet. World Development, 2008.
“Heterogeneous impacts of cooperatives on smallholders' commercialization behavior: evidence from Ethiopia” with Alemayehu Seyoum Taffesse and Eleni Gabre-Madhin. Agricultural Economics, 2008.
“Cooperatives and the poor: who’s in, who’s out? A study of marketing cooperatives in rural Ethiopia” with David Spielman, Food Policy, 2007.
On-going papers
"Flexible contracting and quality upgrading under market volatility: experimental evidence from Senegal", with Joshua Deutschman and OUambi Yameogo, R&R Journal of Development Economics. Draft Nov2025
"Motivation without supervision, Experimental evidence from Rural Public Servants in Ethiopia", with Gashaw Abate and Mekdim Dereje (2026)
"Does others’ health count for peanuts? Health, market returns, and pro-sociality", with Fatou Fall, Joshua Deutschman and Gashaw Abate (2026)
"Rewarding the social benefits of small-scale farming in low-income countries", with Gashaw Abate, Kaleab Baye, Jordan Chamberlin, Ruth Hill, Rachid Moussadek and Lamine Senghor (2026)
"Improving coffee productivity in Ethiopia: The impact of a coffee tree rejuvenation training program on stumping", with Gashaw Abate, Bart Minten and Mekdim Regassa, IFPRI Discussion Paper, International Food Policy Research Institute
“Farmers’ quality assessment of their crops and its impact on commercialization behavior: A field experiment in Ethiopia”, with Gashaw A. Tadesse, IFPRI Discussion Paper, 2017.
"Agri-Food Value Chains in low-income countriesAccounting for market-structure to inform policies", with Eric Giraud-Héraud, FAO Agricultural Development Economics Working Paper. https://doi.org/10.4060/cd0903en
"Adoption of Improved Seeds, Evidence from DRC.", with Sylvie Lambert, Karen Macours et Margaux Vinez (2019), PSE working paper 2019-72
"Beyond Fatalism: an Empirical Exploration of Self-Efficacy and Aspirations Failures in Ethiopia", with Stefan Dercon and Alemayehu Seyoum Taffesse, IFPRI Discussion Paper.
"Randomizing the Last Mile: a methodological note on using voucher-based approach to assess the impact of infrastructure projects", with Maximo Torero, IFPRI Discussion Paper.