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Bundling Weather Indexed-Insurance, SMS Extension Service, and Weather Information: Evidence from a Randomized Trial in Mali

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  • Ölkers, Tim
  • Musshoff, Oliver

Abstract

This paper presents evidence from a randomized controlled trial evaluating two digital agricultural interventions among smallholder maize farmers in southern Mali. The first intervention consists of a standalone mobile-delivered weather index-insurance product, while the second intervention provides a movile-delivered bundled package combining weather index-insurance with localized weather forecasts and agricultural advisory services delivered via SMS. Using data from approximately 1,400 farming households across diverse agro-climatic zones in Mali, we find that both interventions, weather index-insurance alone and the bundled product, improve agricultural outcomes, with substantially stronger effects observed for the bundled product relative to the control group. These larger effects are primarily driven by changes in agricultural input use and production practices induced by the tailored agronomic advice and weather information. Together, these complementary services enable farmers to make more informed production decisions, better manage climate-related risks, adopt more productive farming strategies, and ultimately improve agricultural productivity and household welfare. A cost-benefit analysis further indicates that the bundled intervention is highly cost-effective. The findings highlight the potential of combining financial instruments with digital information services to strengthen agricultural productivity and resilience in low-income settings, while also pointing to promising avenues for future bundled agricultural service models.

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  • Ölkers, Tim & Musshoff, Oliver, 2026. "Bundling Weather Indexed-Insurance, SMS Extension Service, and Weather Information: Evidence from a Randomized Trial in Mali," 2026 Annual Meeting, July 26 - 28, 2026, Kansas City, Missouri 404328, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea26:404328
    DOI: 10.22004/ag.econ.404328
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    1. David McKenzie, 2025. "Designing and analysing powerful experiments: practical tips for applied researchers," Fiscal Studies, John Wiley & Sons, vol. 46(3), pages 305-322, September.
    2. Castaing, Pauline & Gazeaud, Jules, 2025. "Do index insurance programs live up to their promises? Aggregating evidence from multiple experiments," Journal of Development Economics, Elsevier, vol. 175(C).
    3. Yuma Noritomo & Kazushi Takahashi, 2020. "Can Insurance Payouts Prevent a Poverty Trap? Evidence from Randomised Experiments in Northern Kenya," Journal of Development Studies, Taylor & Francis Journals, vol. 56(11), pages 2079-2096, November.
    4. Stephen R Boucher & Michael R Carter & Jon Einar Flatnes & Travis J Lybbert & Jonathan G Malacarne & Paswel P Mareyna & Laura A Paul, 2024. "Bundling Genetic and Financial Technologies for More Resilient and Productive Small-Scale Farmers in Africa," The Economic Journal, Royal Economic Society, vol. 134(662), pages 2321-2350.
    5. Dean Karlan & Robert Osei & Isaac Osei-Akoto & Christopher Udry, 2014. "Agricultural Decisions after Relaxing Credit and Risk Constraints," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 129(2), pages 597-652.
    6. Marc F. Bellemare & Casey J. Wichman, 2020. "Elasticities and the Inverse Hyperbolic Sine Transformation," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 82(1), pages 50-61, February.
    7. Oyakhilomen Oyinbo & Jordan Chamberlin & Tahirou Abdoulaye & Miet Maertens, 2022. "Digital extension, price risk, and farm performance: experimental evidence from Nigeria," American Journal of Agricultural Economics, John Wiley & Sons, vol. 104(2), pages 831-852, March.
    8. Denise Hörner & Adrien Bouguen & Markus Frölich & Meike Wollni, 2022. "Knowledge and Adoption of Complex Agricultural Technologies: Evidence from an Extension Experiment," The World Bank Economic Review, World Bank, vol. 36(1), pages 68-90.
    9. Sandip Mitra & Dilip Mookherjee & Maximo Torero & Sujata Visaria, 2018. "Asymmetric Information and Middleman Margins: An Experiment with Indian Potato Farmers," The Review of Economics and Statistics, MIT Press, vol. 100(1), pages 1-13, March.
    10. Carter, Michael R. & Lybbert, Travis J., 2012. "Consumption versus asset smoothing: testing the implications of poverty trap theory in Burkina Faso," Journal of Development Economics, Elsevier, vol. 99(2), pages 255-264.
    11. Ella Kirchner & Oliver Musshoff, 2024. "Be Happy, Be Loyal? Exploring Drivers for Renewal of Mobile-Delivered Index Insurance," Journal of Development Studies, Taylor & Francis Journals, vol. 60(6), pages 831-847, June.
    12. Quentin Stoeffler & Michael Carter & Catherine Guirkinger & Wouter Gelade, 2022. "The Spillover Impact of Index Insurance on Agricultural Investment by Cotton Farmers in Burkina Faso," The World Bank Economic Review, World Bank, vol. 36(1), pages 114-140.
    13. Fred Mawunyo Dzanku & Robert Osei & Isaac Osei‐Akoto, 2021. "The impact of mobile phone voice message reminders on agricultural outcomes in Mali," Agricultural Economics, International Association of Agricultural Economists, vol. 52(5), pages 789-806, September.
    14. Takahashi, Kazushi & Noritomo, Yuma & Ikegami, Munenobu & Jensen, Nathaniel D., 2020. "Understanding pastoralists’ dynamic insurance uptake decisions: Evidence from four-year panel data in Ethiopia," Food Policy, Elsevier, vol. 95(C).
    15. Annkathrin Wahbi & Eike Nordmeyer & Tim Ölkers & Oliver Musshoff, 2025. "Savings for resilience: Investigating saving instruments in Mali," PLOS ONE, Public Library of Science, vol. 20(7), pages 1-18, July.
    16. Deutschmann, Joshua W. & Duru, Maya & Siegal, Kim & Tjernström, Emilia, 2025. "Relaxing multiple agricultural productivity constraints at scale," Journal of Development Economics, Elsevier, vol. 174(C).
    17. Lasdun, Violet & Harou, Aurélie & Magomba, Chris & Guereña, Davíd, 2025. "Peer learning and technology adoption in a digital farmer-to-farmer network," LSE Research Online Documents on Economics 127762, London School of Economics and Political Science, LSE Library.
    18. Damian Clarke & Joseph P. Romano & Michael Wolf, 2020. "The Romano–Wolf multiple-hypothesis correction in Stata," Stata Journal, StataCorp LLC, vol. 20(4), pages 812-843, December.
    19. Elinor Benami & Michael R. Carter, 2021. "Can digital technologies reshape rural microfinance? Implications for savings, credit, & insurance," Applied Economic Perspectives and Policy, John Wiley & Sons, vol. 43(4), pages 1196-1220, December.
    20. Aker, Jenny C. & Ksoll, Christopher, 2016. "Can mobile phones improve agricultural outcomes? Evidence from a randomized experiment in Niger," Food Policy, Elsevier, vol. 60(C), pages 44-51.
    21. Christopher B. Barrett & Tim G. Benton & Karen A. Cooper & Jessica Fanzo & Rikin Gandhi & Mario Herrero & Steven James & Mark Kahn & Daniel Mason-D’Croz & Alexander Mathys & Rebecca J. Nelson & Jianbo, 2020. "Bundling innovations to transform agri-food systems," Nature Sustainability, Nature, vol. 3(12), pages 974-976, December.
    22. Catherine Larochelle & Jeffrey Alwang & Elli Travis & Victor Hugo Barrera & Juan Manuel Dominguez Andrade, 2019. "Did You Really Get the Message? Using Text Reminders to Stimulate Adoption of Agricultural Technologies," Journal of Development Studies, Taylor & Francis Journals, vol. 55(4), pages 548-564, April.
    23. Wicker, Till, 2026. "Winsorizing and trimming in RCTs," Journal of Development Economics, Elsevier, vol. 182(C).
    24. Annemie Maertens & Hope Michelson & Vesall Nourani, 2021. "How Do Farmers Learn from Extension Services? Evidence from Malawi," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(2), pages 569-595, March.
    25. Ruth Vargas Hill & Miguel Robles & Francisco Ceballos, 2016. "Demand for a Simple Weather Insurance Product in India: Theory and Evidence," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 98(4), pages 1250-1270.
    26. Bjorn Van Campenhout & David J. Spielman & Els Lecoutere, 2021. "Information and Communication Technologies to Provide Agricultural Advice to Smallholder Farmers: Experimental Evidence from Uganda," American Journal of Agricultural Economics, John Wiley & Sons, vol. 103(1), pages 317-337, January.
    27. Davies, Elwyn & Deffebach, Peter & Iacovone, Leonardo & McKenzie, David, 2024. "Training microentrepreneurs over Zoom: Experimental evidence from Mexico," Journal of Development Economics, Elsevier, vol. 167(C).
    28. Pierre Courtois & Julie Subervie, 2015. "Farmer Bargaining Power and Market Information Services," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 97(3), pages 953-977.
    29. Hill, Ruth Vargas & Kumar, Neha & Magnan, Nicholas & Makhija, Simrin & de Nicola, Francesca & Spielman, David J. & Ward, Patrick S., 2019. "Ex ante and ex post effects of hybrid index insurance in Bangladesh," Journal of Development Economics, Elsevier, vol. 136(C), pages 1-17.
    30. Jenny C. Aker, 2010. "Information from Markets Near and Far: Mobile Phones and Agricultural Markets in Niger," American Economic Journal: Applied Economics, American Economic Association, vol. 2(3), pages 46-59, July.
    31. Nathaniel Jensen & Christopher Barrett, 2017. "Agricultural Index Insurance for Development," Applied Economic Perspectives and Policy, Agricultural and Applied Economics Association, vol. 39(2), pages 199-219.
    32. Shawn Cole & Xavier Gine & Jeremy Tobacman & Petia Topalova & Robert Townsend & James Vickery, 2013. "Barriers to Household Risk Management: Evidence from India," American Economic Journal: Applied Economics, American Economic Association, vol. 5(1), pages 104-135, January.
    33. Shawn Cole & Xavier Giné & James Vickery, 2017. "How Does Risk Management Influence Production Decisions? Evidence from a Field Experiment," The Review of Financial Studies, Society for Financial Studies, vol. 30(6), pages 1935-1970.
    34. Sundar Ponnusamy, 2026. "The impact of rainfall shocks in childhood and adolescence on human capital development," American Journal of Agricultural Economics, John Wiley & Sons, vol. 108(1), pages 383-405, January.
    35. Chanchal Pramanik, 2026. "Access to Digital Extension Services and Crop Yield: Evidence From Paddy Cultivation in India," Agricultural Economics, International Association of Agricultural Economists, vol. 57(2), March.
    36. Ghada Elabed & Marc F. Bellemare & Michael R. Carter & Catherine Guirkinger, 2013. "Managing basis risk with multiscale index insurance," Agricultural Economics, International Association of Agricultural Economists, vol. 44(4-5), pages 419-431, July.
    37. Eric S. Owusu & Aminou Arouna & Wilfried G. Yergo & Clare Narrod & Boris Bravo‐Ureta, 2026. "Digital Agricultural Extension and Productivity Impacts in Rice Farming: Lessons From Nigeria," Agricultural Economics, International Association of Agricultural Economists, vol. 57(1), January.
    38. David Wuepper & Travis J. Lybbert, 2017. "Perceived Self-Efficacy, Poverty, and Economic Development," Annual Review of Resource Economics, Annual Reviews, vol. 9(1), pages 383-404, October.
    39. Dohou, Modeste D. & Codjo, Ogoudele S. & Schreinemachers, Pepijn & Totin, Edmond & Amadou, Zakou & Yabi, Jacob A. & Glin, Laurent C. & Ba, Malick N., 2026. "Impact of business coaching on farmers’ income: A cluster randomized controlled trial of vegetable growers in Benin," Food Policy, Elsevier, vol. 140(C).
    40. Lasdun, Violet & Harou, Aurélie P. & Magomba, Chris & Guereña, Davíd, 2025. "Peer learning and technology adoption in a digital farmer-to-farmer network," Journal of Development Economics, Elsevier, vol. 176(C).
    41. Beg, Sabrin & Islam, Mahnaz & Rahman, Khandker Wahedur, 2024. "Information and behavior: Evidence from fertilizer quantity recommendations in Bangladesh," Journal of Development Economics, Elsevier, vol. 166(C).
    42. Jerrod M Penn & Wuyang Hu, 2018. "Understanding Hypothetical Bias: An Enhanced Meta-Analysis," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 100(4), pages 1186-1206.
    43. Abate, Gashaw T. & Abay, Kibrom A. & Chamberlin, Jordan & Kassim, Yumna & Spielman, David J. & Paul Jr Tabe-Ojong, Martin, 2023. "Digital tools and agricultural market transformation in Africa: Why are they not at scale yet, and what will it take to get there?," Food Policy, Elsevier, vol. 116(C).
    44. Tim Ölkers & Ella Kirchner & Oliver Mußhoff, 2025. "A Typology of Malian Farming Households," Journal of International Development, John Wiley & Sons, Ltd., vol. 37(6), pages 1210-1239, August.
    45. Jenny C. Aker & Ishita Ghosh & Jenna Burrell, 2016. "The promise (and pitfalls) of ICT for agriculture initiatives," Agricultural Economics, International Association of Agricultural Economists, vol. 47(S1), pages 35-48, November.
    46. Jensen, Nathaniel D. & Barrett, Christopher B. & Mude, Andrew G., 2017. "Cash transfers and index insurance: A comparative impact analysis from northern Kenya," Journal of Development Economics, Elsevier, vol. 129(C), pages 14-28.
    47. Serfilippi, Elena & Carter, Michael & Guirkinger, Catherine, 2020. "Insurance contracts when individuals “greatly value” certainty: Results from a field experiment in Burkina Faso," Journal of Economic Behavior & Organization, Elsevier, vol. 180(C), pages 731-743.
    48. Yegbemey, Rosaine N. & Bensch, Gunther & Vance, Colin, 2023. "Weather information and agricultural outcomes: Evidence from a pilot field experiment in Benin," World Development, Elsevier, vol. 167(C).
    49. Uwe Deichmann & Aparajita Goyal & Deepak Mishra, 2016. "Will digital technologies transform agriculture in developing countries?," Agricultural Economics, International Association of Agricultural Economists, vol. 47(S1), pages 21-33, November.
    50. Takahashi, Kazushi & Ikegami, Munenobu & Sheahan, Megan & Barrett, Christopher B., 2016. "Experimental Evidence on the Drivers of Index-Based Livestock Insurance Demand in Southern Ethiopia," World Development, Elsevier, vol. 78(C), pages 324-340.
    51. Marcel Fafchamps & Bart Minten, 2012. "Impact of SMS-Based Agricultural Information on Indian Farmers," The World Bank Economic Review, World Bank, vol. 26(3), pages 383-414.
    52. Fernando, A. Nilesh, 2021. "Seeking the treated: The impact of mobile extension on farmer information exchange in India," Journal of Development Economics, Elsevier, vol. 153(C).
    53. Michael Carter & Alain de Janvry & Elisabeth Sadoulet & Alexandros Sarris, 2017. "Index Insurance for Developing Country Agriculture: A Reassessment," Annual Review of Economics, Annual Reviews, vol. 9(1), pages 421-438, October.
    54. David Wuepper & Travis J. Lybbert, 2017. "Perceived Self-Efficacy, Poverty, and Economic Development," Annual Review of Economics, Annual Reviews, vol. 9(1), pages 383-404, October.
    55. Romano, Joseph P. & Wolf, Michael, 2016. "Efficient computation of adjusted p-values for resampling-based stepdown multiple testing," Statistics & Probability Letters, Elsevier, vol. 113(C), pages 38-40.
    56. Timothy G. Conley & Christopher R. Udry, 2010. "Learning about a New Technology: Pineapple in Ghana," American Economic Review, American Economic Association, vol. 100(1), pages 35-69, March.
    57. Camacho, Adriana & Conover, Emily, 2019. "The impact of receiving SMS price and weather information on small scale farmers in Colombia," World Development, Elsevier, vol. 123(C), pages 1-1.
    58. Robert Jensen, 2007. "The Digital Provide: Information (Technology), Market Performance, and Welfare in the South Indian Fisheries Sector," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(3), pages 879-924.
    59. Leeffers, Stefan, 2026. "It will rain: The effect of information on flood preparedness in urban Mozambique," Journal of Development Economics, Elsevier, vol. 182(C).
    60. Raissa Fabregas & Michael Kremer & Matthew Lowes & Robert On & Giulia Zane, 2025. "Digital Information Provision and Behavior Change: Lessons from Six Experiments in East Africa," American Economic Journal: Applied Economics, American Economic Association, vol. 17(1), pages 527-566, January.
    61. Xiaolan Fu & Shaheen Akter, 2016. "The Impact of Mobile Phone Technology on Agricultural Extension Services Delivery: Evidence from India," Journal of Development Studies, Taylor & Francis Journals, vol. 52(11), pages 1561-1576, November.
    62. Le Phuong‐Dung & Francisco Alpizar & Bradford Mills, 2025. "One Size Does Not Fit All: Planting Calendar as an Adaptation Strategy in the Mekong Delta," Agricultural Economics, International Association of Agricultural Economists, vol. 56(6), pages 976-988, November.
    63. Baul, Tushi & Karlan, Dean & Toyama, Kentaro & Vasilaky, Kathryn, 2024. "Improving smallholder agriculture via video-based group extension," Journal of Development Economics, Elsevier, vol. 169(C).
    64. Michael Carter & Alain de Janvry & Elisabeth Sadoulet & Alexandros Sarris, 2017. "Index Insurance for Developing Country Agriculture: A Reassessment," Annual Review of Resource Economics, Annual Reviews, vol. 9(1), pages 421-438, October.
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