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Information Flows and Social Externalities in a Tanzanian Banana Growing Village

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  • Katleen Van den Broeck
  • Stefan Dercon

Abstract

This article analyses the role of social networks as facilitators of information flows and banana output increase. Based on a village census, full information is available on the socio-economic characteristics and banana production of farmers' kinship group members, neighbours and informal insurance group members. The census data enable us to use individual specific reference groups and include exogenous group controls to tackle standard difficulties related to identification and omitted variables bias when analysing social effects. For the survey village of Nyakatoke in Tanzania the results suggest that information flows exist within all types of groups analysed but output externalities are limited to kinship groups. Using networks may offer scope for effective information flows on agricultural techniques, but our evidence suggests that not just any local network will have a social externality impact, requiring a clear understanding of local social networks for maximum impact.

Suggested Citation

  • Katleen Van den Broeck & Stefan Dercon, 2011. "Information Flows and Social Externalities in a Tanzanian Banana Growing Village," Journal of Development Studies, Taylor & Francis Journals, vol. 47(2), pages 231-252.
  • Handle: RePEc:taf:jdevst:v:47:y:2011:i:2:p:231-252
    DOI: 10.1080/00220381003599360
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    Cited by:

    1. Murendo, Conrad & Wollni, Meike & de Brauw, Alan & Mugabi, Nicholas, 2015. "Social network effects on mobile money adoption in Uganda," 2015 Conference, August 9-14, 2015, Milan, Italy 212514, International Association of Agricultural Economists.
    2. repec:eee:wdevel:v:105:y:2018:i:c:p:321-335 is not listed on IDEAS
    3. Makri, Anastasia & Koutsouris, Alex, 2015. "Innovation networking within Producer Groups (PGs): The case of two PGs in Ierapetra, Crete," Agricultural Economics Review, Greek Association of Agricultural Economists, vol. 16(1), January.
    4. Bet Caeyers, 2014. "Peer effects in development programme awareness of vulnerable groups in rural Tanzania," CSAE Working Paper Series 2014-11, Centre for the Study of African Economies, University of Oxford.
    5. Tisorn Songsermsawas & Kathy Baylis & Ashwini Chhatre & Hope Michelson, 2014. "Can Peers Improve Agricultural Productivity?," CESifo Working Paper Series 4958, CESifo Group Munich.
    6. repec:pal:eurjdr:v:30:y:2018:i:2:d:10.1057_s41287-017-0094-3 is not listed on IDEAS
    7. Kumasi, Tyhra Carolyn & Asenso-Okyere, Kwadwo, 2011. "Responding to land degradation in the highlands of Tigray, Northern Ethiopia:," IFPRI discussion papers 1142, International Food Policy Research Institute (IFPRI).
    8. Nazim Habibov & Elvin Afandi, 2017. "Community-Level Social Capital and Household Strategies for Coping with Global Crisis in Transitional Countries," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 130(2), pages 687-710, January.
    9. Pan He & Marcella Veronesi, 2015. "The Diffusion of Information and Behavior in Social Networks: Renewable Energy Technology Adoption in Rural China," Working Papers 06/2015, University of Verona, Department of Economics.
    10. Songsermsawas, Tisorn & Baylis, Katherine R. & Chhatre, Ashwini, 2014. "Effects of Peers on Agricultural Productivity in Rural Northern India," 2014 Annual Meeting, July 27-29, 2014, Minneapolis, Minnesota 170168, Agricultural and Applied Economics Association.
    11. Anna Folke Larsen, 2015. "The network at work: Diffusion of banana cultivation in Tanzania," CAM Working Papers camwp2015_01, University of Copenhagen. Department of Economics. Centre for Applied Microeconometrics.
    12. Vanesse Labeyrie & Bernard Rono & Christian Leclerc, 2014. "How social organization shapes crop diversity: an ecological anthropology approach among Tharaka farmers of Mount Kenya," Agriculture and Human Values, Springer;The Agriculture, Food, & Human Values Society (AFHVS), vol. 31(1), pages 97-107, March.
    13. Muange, Elijah N. & Schwarze, Stefan & Qaim, Matin, 2014. "Social networks and farmer exposure to improved crop varieties in Tanzania," Discussion Papers 183635, Georg-August-Universitaet Goettingen, GlobalFood, Department of Agricultural Economics and Rural Development.
    14. Mekonnen Daniel Ayalew & Gerber Nicolas & Matz Julia Anna, 2016. "Working Paper 235 - Social Networks, Agricultural Innovations, and Farm Productivity in Ethiopia," Working Paper Series 2330, African Development Bank.
    15. repec:oxf:wpaper:wps/2014-11 is not listed on IDEAS

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