IDEAS home Printed from https://ideas.repec.org/a/bla/agecon/v39y2008i3p309-323.html
   My bibliography  Save this article

Technology adoption under seed access constraints and the economic impacts of improved pigeonpea varieties in Tanzania

Author

Listed:
  • Bekele A. Shiferaw
  • Tewodros A. Kebede
  • Liang You

Abstract

Dry‐land legumes, well adapted to drought‐prone areas, have largely been neglected in the past despite the good opportunities they offer for income growth and food (and nutritional) security for the poor. This study evaluated the adoption and impact of two farmer and market‐preferred and disease‐resistant pigeonpea varieties that were developed and promoted in semi‐arid Tanzania. The new varieties were resistant to fusarium wilt, a fungal disease devastating the crop. However, farmers wanting to adopt new varieties did not adopt due to seed access constraints and under‐developed seed delivery systems. Adoption of new varieties is therefore analyzed using an augmented double hurdle model that allows estimating variety adoption conditional on seed access thresholds accounting for the additional information on sample separation. The study identifies the crucial role of seed access (local supply), extension, education, participatory decision making, capital, and household assets in determining adoption. The social economic benefits of the technology and policies for improved seed access were further analyzed using the extended economic surplus method (DREAM model). Even under restrictive assumptions, overall discounted benefits were found to be quite attractive, indicating the need for additional efforts to scale‐up the success story. Analysis of changes in research benefits from relaxing the seed access constraint showed that net gains would increase by up to 30% if farmer access to improved seeds can be assured. Smallholder farmers are the major beneficiaries along with consumers and rural net‐buyers who gain from productivity‐induced lower market prices.

Suggested Citation

  • Bekele A. Shiferaw & Tewodros A. Kebede & Liang You, 2008. "Technology adoption under seed access constraints and the economic impacts of improved pigeonpea varieties in Tanzania," Agricultural Economics, International Association of Agricultural Economists, vol. 39(3), pages 309-323, November.
  • Handle: RePEc:bla:agecon:v:39:y:2008:i:3:p:309-323
    DOI: 10.1111/j.1574-0862.2008.00335.x
    as

    Download full text from publisher

    File URL: https://doi.org/10.1111/j.1574-0862.2008.00335.x
    Download Restriction: no

    File URL: https://libkey.io/10.1111/j.1574-0862.2008.00335.x?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. P. Kristjanson & I. Okike & S. Tarawali & B. B. Singh & V. M. Manyong, 2005. "Farmers' perceptions of benefits and factors affecting the adoption of improved dual‐purpose cowpea in the dry savannas of Nigeria," Agricultural Economics, International Association of Agricultural Economists, vol. 32(2), pages 195-210, March.
    2. Stein Holden & Bekele Shiferaw & John Pender, 2001. "Market Imperfections and Land Productivity in the Ethiopian Highlands," Journal of Agricultural Economics, Wiley Blackwell, vol. 52(3), pages 53-70, September.
    3. Judy L. Baker, 2000. "Evaluating the Impact of Development Projects on Poverty : A Handbook for Practitioners," World Bank Publications - Books, The World Bank Group, number 13949, April.
    4. Woldehanna, Tassew & Lansink, Alfons Oude & Peerlings, Jack, 2000. "Off-farm work decisions on Dutch cash crop farms and the 1992 and Agenda 2000 CAP reforms," Agricultural Economics, Blackwell, vol. 22(2), pages 163-171, March.
    5. Jones, Andrew M, 1992. "A Note on Computation of the Double-Hurdle Model with Dependence with an Application to Tobacco Expenditure," Bulletin of Economic Research, Wiley Blackwell, vol. 44(1), pages 67-74, January.
    6. Shiyani, R. L. & Joshi, P. K. & Asokan, M. & Bantilan, M. C. S., 2002. "Adoption of improved chickpea varieties: KRIBHCO experience in tribal region of Gujarat, India," Agricultural Economics, Blackwell, vol. 27(1), pages 33-39, May.
    7. Ephraim Nkonya & Ted Schroeder & David Norman, 1997. "Factors Affecting Adoption Of Improved Maize Seed And Fertiliser In Northern Tanzania," Journal of Agricultural Economics, Wiley Blackwell, vol. 48(1‐3), pages 1-12, January.
    8. Matshe, Innocent & Young, Trevor, 2004. "Off-farm labour allocation decisions in small-scale rural households in Zimbabwe," Agricultural Economics, Blackwell, vol. 30(3), pages 175-186, May.
    9. James F. Oehmke & Eric W. Crawford, 2002. "The Sensitivity of Returns to Research Calculations to Supply Elasticity," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 84(2), pages 366-369.
    10. Tripp, Robert & Rohrbach, David, 2001. "Policies for African seed enterprise development," Food Policy, Elsevier, vol. 26(2), pages 147-161, April.
    11. Kimhi, Ayal, 1999. "Double-Hurdle and Purchase-Infrequency Demand Analysis: A Feasible Integrated Approach," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 26(4), pages 425-442, December.
    12. Pender, John L. & Kerr, John M., 1998. "Determinants of farmers' indigenous soil and water conservation investments in semi-arid India," Agricultural Economics, Blackwell, vol. 19(1-2), pages 113-125, September.
    13. Vuong, Quang H, 1989. "Likelihood Ratio Tests for Model Selection and Non-nested Hypotheses," Econometrica, Econometric Society, vol. 57(2), pages 307-333, March.
    14. repec:bla:econom:v:62:y:1995:i:246:p:213-34 is not listed on IDEAS
    15. P G Moffatt, 2005. "Hurdle models of loan default," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 56(9), pages 1063-1071, September.
    16. Adesina, Akinwumi A. & Zinnah, Moses M., 1993. "Technology characteristics, farmers' perceptions and adoption decisions: A Tobit model application in Sierra Leone," Agricultural Economics, Blackwell, vol. 9(4), pages 297-311, December.
    17. Andre Croppenstedt & Mulat Demeke & Meloria M. Meschi, 2003. "Technology Adoption in the Presence of Constraints: the Case of Fertilizer Demand in Ethiopia," Review of Development Economics, Wiley Blackwell, vol. 7(1), pages 58-70, February.
    18. Cragg, John G, 1971. "Some Statistical Models for Limited Dependent Variables with Application to the Demand for Durable Goods," Econometrica, Econometric Society, vol. 39(5), pages 829-844, September.
    19. de Janvry, Alain & Fafchamps, Marcel & Sadoulet, Elisabeth, 1991. "Peasant Household Behaviour with Missing Markets: Some Paradoxes Explained," Economic Journal, Royal Economic Society, vol. 101(409), pages 1400-1417, November.
    20. Murray Smith, 2003. "On dependency in double-hurdle models," Statistical Papers, Springer, vol. 44(4), pages 581-595, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Aloyce R Kaliba & Kizito Mazvimavi & Theresia L Gregory & Frida M Mgonja & Mary Mgonja, 2018. "Factors affecting adoption of improved sorghum varieties in Tanzania under information and capital constraints," Agricultural and Food Economics, Springer;Italian Society of Agricultural Economics (SIDEA), vol. 6(1), pages 1-21, December.
    2. Yu, Bingxin & Nin-Pratt, Alejandro & Funes, José & Gemessa, Sinafikeh Asrat, 2011. "Cereal production and technology adoption in Ethiopia," ESSP working papers 31, International Food Policy Research Institute (IFPRI).
    3. David Aristei & Luca Pieroni, 2008. "A double-hurdle approach to modelling tobacco consumption in Italy," Applied Economics, Taylor & Francis Journals, vol. 40(19), pages 2463-2476.
    4. Langyintuo, Augustine S. & Mungoma, Catherine, 2008. "The effect of household wealth on the adoption of improved maize varieties in Zambia," Food Policy, Elsevier, vol. 33(6), pages 550-559, December.
    5. Liverpool-Tasie, Lenis Saweda O., 2014. "Farmer groups and input access: When membership is not enough," Food Policy, Elsevier, vol. 46(C), pages 37-49.
    6. Balana, Bedru B. & Mekonnen, Dawit & Haile, Beliyou & Hagos, Fitsum & Yimam, Seid & Ringler, Claudia, 2022. "Demand and supply constraints of credit in smallholder farming: Evidence from Ethiopia and Tanzania," World Development, Elsevier, vol. 159(C).
    7. David Aristei & Federico Perali & Luca Pieroni, 2008. "Cohort, age and time effects in alcohol consumption by Italian households: a double-hurdle approach," Empirical Economics, Springer, vol. 35(1), pages 29-61, August.
    8. Josephson, Anna & Ricker-Gilbert, Jacob, 2020. "Preferences and crop choice during Zimbabwe’s macroeconomic crisis," African Journal of Agricultural and Resource Economics, African Association of Agricultural Economists, vol. 15(3), September.
    9. Hazarika, Bhabesh & Bezbaruah, Madhurjya Prashad & Goswami, Kishor, 2016. "Adoption of modern weaving technology in the handloom micro-enterprises in Assam: A Double Hurdle approach," Technological Forecasting and Social Change, Elsevier, vol. 102(C), pages 344-356.
    10. Nguyen, Huy, 2014. "The effect of land fragmentation on labor allocation and the economic diversity of farm households: The case of Vietnam," MPRA Paper 57521, University Library of Munich, Germany.
    11. Fujimoto, Takefumi & Suzuki, Aya, 2021. "Do Fertilizer and Seed Subsidies Strengthen Farmers' Market Participation? the Impact of Tanzania NAIVS on Farmers' Purchase of Agricultural Inputs and Their Maize-Selling Activities," 2021 Conference, August 17-31, 2021, Virtual 315044, International Association of Agricultural Economists.
    12. Yaldız Hanedar, Elmas & Broccardo, Eleonora & Bazzana, Flavio, 2014. "Collateral requirements of SMEs: The evidence from less-developed countries," Journal of Banking & Finance, Elsevier, vol. 38(C), pages 106-121.
    13. Mignouna, D.B. & Abdoulaye, T. & Alene, A. & Akinola, A.A. & Manyong, V.M., 2015. "Drivers of Market Participation Decisions among Small-scale Farmers in Yam Growing Areas of Nigeria and Ghana," 2015 Conference, August 9-14, 2015, Milan, Italy 230219, International Association of Agricultural Economists.
    14. Egemen İPEK, 2019. "An Empirical Study on Alcohol Participation and Consumption Decision in Turkey," Sosyoekonomi Journal, Sosyoekonomi Society, issue 27(41).
    15. Boris Bravo & Horacio Cocchi & Daniel Solís, 2006. "Adoption of Soil Conservation Technologies in El Salvador: A cross-Section and Over-Time Analysis," OVE Working Papers 1806, Inter-American Development Bank, Office of Evaluation and Oversight (OVE).
    16. Wobst, Peter & Tchale, Hardwick & Frohberg, Klaus, 2004. "Soil Fertility Management Choice in the Maize-Based Smallholder Farming System in Malawi," 2004 Inaugural Symposium, December 6-8, 2004, Nairobi, Kenya 9524, African Association of Agricultural Economists (AAAE).
    17. Edward Martey & Prince M. Etwire & Alexander Nimo Wiredu & Benjamin D. K. Ahiabor, 2017. "Establishing the link between market orientation and agricultural commercialization: Empirical evidence from Northern Ghana," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 9(4), pages 849-866, August.
    18. Harris, Mark N. & Zhao, Xueyan, 2007. "A zero-inflated ordered probit model, with an application to modelling tobacco consumption," Journal of Econometrics, Elsevier, vol. 141(2), pages 1073-1099, December.
    19. Olwande, John & Smale, Melinda & Mathenge, Mary K. & Place, Frank & Mithöfer, Dagmar, 2015. "Agricultural marketing by smallholders in Kenya: A comparison of maize, kale and dairy," Food Policy, Elsevier, vol. 52(C), pages 22-32.
    20. Shelley I. White-Means & Ahmad Reshad Osmani, 2019. "Job Market Prospects of Breast vs. Prostate Cancer Survivors in the US: A Double Hurdle Model of Ethnic Disparities," Journal of Family and Economic Issues, Springer, vol. 40(2), pages 282-304, June.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    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:bla:agecon:v:39:y:2008:i:3:p:309-323. See general information about how to correct material in RePEc.

    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 CitEc recognized a bibliographic reference but did not link an item in RePEc 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 RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Wiley Content Delivery (email available below). General contact details of provider: https://edirc.repec.org/data/iaaeeea.html .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.