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Access, adoption, and diffusion: understanding the long-term impacts of improved vegetable and fish technologies in Bangladesh

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  • Neha Kumar
  • Agnes Quisumbing

Abstract

This paper assesses long-term impacts of early adoption of vegetable and polyculture fish production technologies on household and individual well-being in Bangladesh. In 1996-1997 and 2006-2007, a panel of households were surveyed in three sites where non-governmental organisations and extension programmes disseminated agricultural technologies. Using nearest-neighbour matching to construct a statistical comparison group, the authors find that long-term impacts differ across agricultural technology interventions and across outcomes. Long-term impacts on household-level consumption expenditures and asset accumulation are, in general, insignificant in the improved vegetables sites, but are positive and significant in the individually operated fish ponds sites. However, the impacts on individual nutrient intake, nutrient adequacy, and nutritional status do not follow the pattern of household-level impacts. Differences in long-term and short-term impacts arise from several causes: differences in dissemination and targeting mechanisms that may affect household-level adoption decisions; initial differences between comparison and treatment groups; divisibility and ease of dissemination of the technology; and intrahousehold allocation processes that determine the allocation of gains from the new technology among household members.

Suggested Citation

  • Neha Kumar & Agnes Quisumbing, 2011. "Access, adoption, and diffusion: understanding the long-term impacts of improved vegetable and fish technologies in Bangladesh," Journal of Development Effectiveness, Taylor & Francis Journals, vol. 3(2), pages 193-219.
    • Handle: RePEc:taf:jdevef:v:3:y:2011:i:2:p:193-219
    DOI: 10.1080/19439342.2011.570452
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    1. Blakstad, Mia M. & Mosha, Dominic & Bliznashka, Lilia & Bellows, Alexandra L. & Canavan, Chelsey R. & Yussuf, Mashavu H & Mlalama, Killian & Madzorera, Isabel & Chen, Jarvis T. & Noor, Ramadhani A. & , 2022. "Are home gardening programs a sustainable way to improve nutrition? Lessons from a cluster-randomized controlled trial in Rufiji, Tanzania," Food Policy, Elsevier, vol. 109(C).
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    3. Dey, Madan M. & Haque, A.B.M. Mahfuzul & Rahman, Md. Saidur & Spielman David J. & Valmonte-Santos, Rowena, 2012. "Change and diversity in smallholder rice-fish systems: Recent evidence from Bangladesh," IFPRI discussion papers 1220, International Food Policy Research Institute (IFPRI).
    4. Dey, Madan M. & Spielman, David J. & Haque, A.B.M.M. & Rahman, M.S. & Valmonte-Santos, R., 2013. "Change and diversity in smallholder rice–fish systems: Recent evidence and policy lessons from Bangladesh," Food Policy, Elsevier, vol. 43(C), pages 108-117.
    5. Patrick S. Ward & David L. Ortega & David J. Spielman & Neha Kumar & Sumedha Minocha, 2020. "Demand for Complementary Financial and Technological Tools for Managing Drought Risk," Economic Development and Cultural Change, University of Chicago Press, vol. 68(2), pages 607-653.
    6. Behrman, Julia A. & Johnson, Nancy & Meinzen-Dick, Ruth Suseela & Njuki, Jemimah & Peterman, Amber & Quisumbing, Agnes R. & Rubin, Deborah & Waithanji, Elizabeth, 2011. "Gender, assets, and agricultural development programs: A conceptual framework," CAPRi working papers 99, International Food Policy Research Institute (IFPRI).
    7. van den Bold, Mara & Quisumbing, Agnes R. & Gillespie, Stuart, 2013. "Women’s empowerment and nutrition: An evidence review," IFPRI discussion papers 1294, International Food Policy Research Institute (IFPRI).
    8. Ruth Meinzen-Dick & Agnes Quisumbing, 2018. "Response to Garcia and Wanner “gender inequality and food security: lessons for the gender-responsive work of the international food policy research institute and the Bill and Melinda Gates Foundation” Food Security (2017) 9:1091–1103," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 10(2), pages 247-251, April.
    9. Md. Sadique Rahman & Farhad Zulfiqar & Hayat Ullah & Sushil Kumar Himanshu & Mofasser Rahman & Avishek Datta, 2024. "Does the adoption of homestead gardening increase dietary diversity in climate-vulnerable coastal areas? Evidence from Bangladesh," Asia-Pacific Journal of Regional Science, Springer, vol. 8(3), pages 859-878, September.
    10. Balasubramanya, Soumya, 2019. "Effects of training duration and the role of gender on farm participation in water user associations in Southern Tajikistan: Implications for irrigation management," Agricultural Water Management, Elsevier, vol. 216(C), pages 1-11.
    11. Uddin, Mohammad Riaz, 2025. "Household fish production, fish consumption, dietary diversity, and anthropometric outcomes in rural Bangladesh," Food Policy, Elsevier, vol. 135(C).
    12. Beaman, Lori & Dillon, Andrew, 2018. "Diffusion of agricultural information within social networks: Evidence on gender inequalities from Mali," Journal of Development Economics, Elsevier, vol. 133(C), pages 147-161.
    13. repec:osf:socarx:bwmq4_v1 is not listed on IDEAS
    14. Jacopo, Bonan & Stefano, Pareglio & Valentina, Rotondi, 2015. "Extension Services, Production and Welfare: Evidence from a Field Experiment in Ethiopia," Working Papers 312, University of Milano-Bicocca, Department of Economics, revised 30 Oct 2015.
    15. Debayan Pakrashi & Surya Nath Maiti & Sarani Saha, 2022. "Caste, Awareness and Inequality in Access to Maternal and Child Health Programs: Evidence From India," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 163(3), pages 1301-1321, October.
    16. Stella Nordhagen & Abdoulaye Traoré, 2022. "Group-based approaches to nutrition-sensitive agriculture: insights from a post-project sustainability study in Côte d’Ivoire," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 14(2), pages 337-353, April.
    17. Mara van den Bold & Andrew Dillon & Deanna Olney & Marcellin Ouedraogo & Abdoulaye Pedehombga & Agnes Quisumbing, 2015. "Can Integrated Agriculture-Nutrition Programmes Change Gender Norms on Land and Asset Ownership? Evidence from Burkina Faso," Journal of Development Studies, Taylor & Francis Journals, vol. 51(9), pages 1155-1174, September.
    18. Johnson, Nancy L. & Balagamwala, Mysbah & Pinkstaff, Crossley & Theis, Sophie & Meinzen-Dick, Ruth S. & Quisumbing, Agnes R., 2017. "How do agricultural development projects aim to empower women? Insights from an analysis of project strategies," IFPRI discussion papers 1609, International Food Policy Research Institute (IFPRI).
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