IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Social Interactions in Growing Bananas: Evidence from a Tanzanian Village

  • Katleen Van den Broeck
  • Stefan Dercon

This paper analyses whether agricultural information flows give rise to social learning effects in banana cultivation in Nyakatoke, a small Tanzanian village. Based on a village census, full information is available on socio-economic characteristics and banana production of farmer kinship members, neighbours and informal insurance group members. This allows a test for social learning within these groups and the identification of different types of social effects. Controlling for exogenous group characteristics, the effect of group behaviour on individual farmer output is studied. The results show that social effects are strongly dependent on the definition of the reference group. It emerges that no social effects are found in distance based groups, exogenous social effects linked to group education exist in informal insurance groups, and only kinship related groups generate the endogenous social effects that produce positive externalities in banana output.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

Paper provided by Centre for the Study of African Economies, University of Oxford in its series CSAE Working Paper Series with number 2007-05.

in new window

Date of creation: 2007
Date of revision:
Handle: RePEc:csa:wpaper:2007-05
Contact details of provider: Postal: Manor Road, Oxford, OX1 3UQ
Phone: +44-(0)1865 271084
Fax: +44-(0)1865 281447
Web page:

More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Marianne Bertrand & Erzo F. P. Luttmer & Sendhil Mullainathan, 2000. "Network Effects And Welfare Cultures," The Quarterly Journal of Economics, MIT Press, vol. 115(3), pages 1019-1055, August.
  2. Ellison, Glenn & Fudenberg, Drew, 1992. "Rules of Thumb for Social Learning," IDEI Working Papers 17, Institut d'Économie Industrielle (IDEI), Toulouse.
  3. Besley, Timothy & Case, Anne, 1993. "Modeling Technology Adoption in Developing Countries," American Economic Review, American Economic Association, vol. 83(2), pages 396-402, May.
  4. Oriana Bandiera & Imran Rasul, 2002. "Social networks and technology adoption in Northern Mozambique," LSE Research Online Documents on Economics 3539, London School of Economics and Political Science, LSE Library.
  5. Charles F. Manski, 2000. "Economic Analysis of Social Interactions," Journal of Economic Perspectives, American Economic Association, vol. 14(3), pages 115-136, Summer.
  6. Barr, Abigail, 2000. "Social Capital and Technical Information Flows in the Ghanaian Manufacturing Sector," Oxford Economic Papers, Oxford University Press, vol. 52(3), pages 539-59, July.
  7. Mark Rosenzweig & Andrew D. Foster, . "Learning by Doing and Learning from Others: Human Capital and Technical Change in Agriculture," Home Pages _068, University of Pennsylvania.
  8. Fudenberg, Drew & Ellison, Glenn, 1995. "Word-of-Mouth Communication and Social Learning," Scholarly Articles 3196300, Harvard University Department of Economics.
  9. Steven N. Durlauf, 2002. "On the Empirics of Social Capital," Economic Journal, Royal Economic Society, vol. 112(483), pages 459-479, November.
  10. Borjas, George J, 1995. "Ethnicity, Neighborhoods, and Human-Capital Externalities," American Economic Review, American Economic Association, vol. 85(3), pages 365-90, June.
  11. Gubert, Flore & Fafchamps, Marcel, 2007. "The Formation of Risk Sharing Networks," Economics Papers from University Paris Dauphine 123456789/4392, Paris Dauphine University.
  12. Borjas, George J, 1992. "Ethnic Capital and Intergenerational Mobility," The Quarterly Journal of Economics, MIT Press, vol. 107(1), pages 123-50, February.
  13. Jonathan Isham, 2002. "The Effect of Social Capital on Fertilizer Adoption: Evidence from Rural Tanzania," Middlebury College Working Paper Series 0225, Middlebury College, Department of Economics.
  14. Marcel Fafchamps, 2002. "Returns to social network capital among traders," Oxford Economic Papers, Oxford University Press, vol. 54(2), pages 173-206, April.
  15. Bala, V. & Goyal, S., 1995. "Learning from Neighbors," Econometric Institute Research Papers EI 9549-/A, Erasmus University Rotterdam, Erasmus School of Economics (ESE), Econometric Institute.
  16. Manski, Charles F, 1993. "Identification of Endogenous Social Effects: The Reflection Problem," Review of Economic Studies, Wiley Blackwell, vol. 60(3), pages 531-42, July.
  17. Gale, Douglas, 1996. "What have we learned from social learning?," European Economic Review, Elsevier, vol. 40(3-5), pages 617-628, April.
  18. Yamauchi, Futoshi, 2007. "Social learning, neighborhood effects, and investment in human capital: Evidence from Green-Revolution India," Journal of Development Economics, Elsevier, vol. 83(1), pages 37-62, May.
  19. Basu, Kaushik & Foster, James E, 1998. "On Measuring Literacy," Economic Journal, Royal Economic Society, vol. 108(451), pages 1733-49, November.
  20. Evans, William N & Oates, Wallace E & Schwab, Robert M, 1992. "Measuring Peer Group Effects: A Study of Teenage Behavior," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 966-91, October.
  21. Munshi, Kaivan, 2004. "Social learning in a heterogeneous population: technology diffusion in the Indian Green Revolution," Journal of Development Economics, Elsevier, vol. 73(1), pages 185-213, February.
  22. Timothy Conley & Udry Christopher, 2001. "Social Learning Through Networks: The Adoption of New Agricultural Technologies in Ghana," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 83(3), pages 668-673.
  23. Bardhan, Pranab & Udry, Christopher, 1999. "Development Microeconomics," OUP Catalogue, Oxford University Press, number 9780198773719, July.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:csa:wpaper:2007-05. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Richard Payne)

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.