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

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  • 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
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    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.
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