IDEAS home Printed from
   My bibliography  Save this paper

The Effects of Agricultural Extension on Farm Yields in Kenya


  • Evenson, R.E.
  • Mwabu, G.


The paper examines effects of agricultural extension on crop yields in Kenya controlling for other determinants of yields, notably the schooling of farmers and agro-ecological characteristics of arable land. The data we use were collected by the Government of Kenya in 1982 and 1990, but the estimation results reported in the paper are based primarily on the 1982 data set. The sample used for estimation contains information about crop production, agricultural extension workers (exogenously supplied to farms), educational attainment of farmers, usage of farm inputs, among others. A quantile regression technique was used to investigate productivity effects of agricultural extension and other farm inputs over the entire conditional distribution of farm yield residuals.

Suggested Citation

  • Evenson, R.E. & Mwabu, G., 1998. "The Effects of Agricultural Extension on Farm Yields in Kenya," Papers 798, Yale - Economic Growth Center.
  • Handle: RePEc:fth:yalegr:798

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a search for a similarly titled item that would be available.

    References listed on IDEAS

    1. Khandker, S.R. & Khalily, B. & Khan, Z., 1995. "Grameen Bank: Performance and Sustainability," World Bank - Discussion Papers 306, World Bank.
    2. Besley, Timothy & Coate, Stephen & Loury, Glenn, 1993. "The Economics of Rotating Savings and Credit Associations," American Economic Review, American Economic Association, vol. 83(4), pages 792-810, September.
    3. Guinnane Timothy W., 1994. "A Failed Institutional Transplant: Raiffeisen's Credit Cooperatives in Ireland, 1894-1914," Explorations in Economic History, Elsevier, vol. 31(1), pages 38-61, January.
    4. Dilip Mookherjee & Ivan Png, 1989. "Optimal Auditing, Insurance, and Redistribution," The Quarterly Journal of Economics, Oxford University Press, vol. 104(2), pages 399-415.
    5. Besley, Timothy & Coate, Stephen, 1995. "Group lending, repayment incentives and social collateral," Journal of Development Economics, Elsevier, vol. 46(1), pages 1-18, February.
    6. Huppi, Monika & Feder, Gershon, 1990. "The Role of Groups and Credit Cooperatives in Rural Lending," World Bank Research Observer, World Bank Group, vol. 5(2), pages 187-204, July.
    7. Hossain, Mahabub, 1988. "Credit for alleviation of rural poverty: the Grameen Bank in Bangladesh," Research reports 65, International Food Policy Research Institute (IFPRI).
    8. Adams, Dale W & Von Pischke, J. D., 1992. "Microenterprise credit programs: Deja vu," World Development, Elsevier, vol. 20(10), pages 1463-1470, October.
    9. Abhijit V. Banerjee & Timothy Besley & Timothy W. Guinnane, 1994. "Thy Neighbor's Keeper: The Design of a Credit Cooperative with Theory and a Test," The Quarterly Journal of Economics, Oxford University Press, vol. 109(2), pages 491-515.
    10. Douglas W. Diamond, 1996. "Financial intermediation as delegated monitoring: a simple example," Economic Quarterly, Federal Reserve Bank of Richmond, issue Sum, pages 51-66.
    11. Stiglitz, Joseph E, 1990. "Peer Monitoring and Credit Markets," World Bank Economic Review, World Bank Group, vol. 4(3), pages 351-366, September.
    12. Mark M. Pitt & Shahidur R. Khandker, 1998. "The Impact of Group-Based Credit Programs on Poor Households in Bangladesh: Does the Gender of Participants Matter?," Journal of Political Economy, University of Chicago Press, vol. 106(5), pages 958-996, October.
    13. Edward Simpson Prescott, 1997. "Group lending and financial intermediation: an example," Economic Quarterly, Federal Reserve Bank of Richmond, issue Fall, pages 23-48.
    14. Hoff, Karla & Stiglitz, Joseph E, 1990. "Imperfect Information and Rural Credit Markets--Puzzles and Policy Perspectives," World Bank Economic Review, World Bank Group, vol. 4(3), pages 235-250, September.
    15. Xavier Freixas & Jean-Charles Rochet, 1997. "Microeconomics of Banking," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061937, January.
    16. Townsend, Robert M., 1979. "Optimal contracts and competitive markets with costly state verification," Journal of Economic Theory, Elsevier, vol. 21(2), pages 265-293, October.
    17. George A. Akerlof, 1970. "The Market for "Lemons": Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, Oxford University Press, vol. 84(3), pages 488-500.
    Full references (including those not matched with items on IDEAS)


    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.

    Cited by:

    1. Seebens, Holger, 2008. "One size fits all? Female Headed Households, Income Risk, and Access to Resources," 2008 International Congress, August 26-29, 2008, Ghent, Belgium 43609, European Association of Agricultural Economists.
    2. Pant, Bhaskar & Rathi, Alpa & Rathi, Anshul, 2012. "Effectiveness of Crop Advisory Services in Aurangabad District of Maharashtra in India," International Journal of Agricultural Management and Development (IJAMAD), Iranian Association of Agricultural Economics, vol. 2(4), December.

    More about this item



    JEL classification:

    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
    • Q16 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - R&D; Agricultural Technology; Biofuels; Agricultural Extension Services


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:fth:yalegr:798. 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: (Thomas Krichel). General contact details of provider: .

    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.

    We have no references for this item. You can help adding them by using 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 RePEc Author Service 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.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.