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Soil Fertility Management And Maize Productivity In Malawi: Curvature Correct Efficiency Modeling And Simulation

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  • Tchale, Hardwick
  • Sauer, Johannes
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    Abstract

    We assess the level and determinants of relative technical efficiency of maize-based smallholder farmers using a translog stochastic frontier (TL) model and a symmetric generalized Barnett production function (SGB), both of which are tested for economic regularity conditions. In addition, we conduct a bootstrapping procedure in order to infer about the probability distributions and significance of the relative efficiency values for farmers using different soil fertility management options. The results indicate that higher levels of relative technical efficiency obtain when farmers use integrated soil fertility options compared to the use of chemical fertilizer only. The consistency of the results across the two models increase the robustness of the findings. The paper concludes that productivity growth under the maize-based farming systems is considerably higher when farmers use integrated soil fertility management options. Thus there is need for policy and institutional interventions that enhance farmers’ adoption and scaling-up of integrated soil fertility management.

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    Bibliographic Info

    Paper provided by African Association of Agricultural Economists (AAAE) in its series 2007 Second International Conference, August 20-22, 2007, Accra, Ghana with number 52077.

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    Date of creation: Nov 2008
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    Handle: RePEc:ags:aaae07:52077

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    Related research

    Keywords: Smallholder agriculture; relative technical efficiency; soil fertility management; Malawi; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Relations/Trade; Labor and Human Capital; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies;

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    1. 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.
    2. Helfand, Steven M. & Levine, Edward S., 2004. "Farm size and the determinants of productive efficiency in the Brazilian Center-West," Agricultural Economics, Blackwell, vol. 31(2-3), pages 241-249, December.
    3. Forsund, Finn R. & Lovell, C. A. Knox & Schmidt, Peter, 1980. "A survey of frontier production functions and of their relationship to efficiency measurement," Journal of Econometrics, Elsevier, vol. 13(1), pages 5-25, May.
    4. Sherlund, Shane M. & Barrett, Christopher B. & Adesina, Akinwumi A., 2002. "Smallholder technical efficiency controlling for environmental production conditions," Journal of Development Economics, Elsevier, vol. 69(1), pages 85-101, October.
    5. Sharada Weir & John Knight, 2000. "Education externalities in rural Ethiopia: evidence from average and stochastic frontier production functions," CSAE Working Paper Series 2000-04, Centre for the Study of African Economies, University of Oxford.
    6. Paul Mosley & Abrar Suleiman, 2007. "Aid, Agriculture and Poverty in Developing Countries," Review of Development Economics, Wiley Blackwell, vol. 11(1), pages 139-158, 02.
    7. Zeller, Manfred & Diagne, Aliou & Mataya, Charles, 1998. "Market access by smallholder farmers in Malawi: implications for technology adoption, agricultural productivity and crop income," Agricultural Economics, Blackwell, vol. 19(1-2), pages 219-229, September.
    8. Dorward, Andrew & Kydd, Jonathan & Morrison, Jamie & Urey, Ian, 2002. "A Policy Agenda For Pro Poor Agricultural Growth," ADU Working Papers 10923, Imperial College at Wye, Department of Agricultural Sciences.
    9. Fulginiti, Lilyan E. & Perrin, Richard K., 1998. "Agricultural productivity in developing countries," Agricultural Economics, Blackwell, vol. 19(1-2), pages 45-51, September.
    10. Udry, Christopher & Hoddinott, John & Alderman, Harold & Haddad, Lawrence, 1995. "Gender differentials in farm productivity: implications for household efficiency and agricultural policy," Food Policy, Elsevier, vol. 20(5), pages 407-423, October.
    11. Townsend, R. F. & Kirsten, J. & Vink, N., 1998. "Farm size, productivity and returns to scale in agriculture revisited: a case study of wine producers in South Africa," Agricultural Economics, Blackwell, vol. 19(1-2), pages 175-180, September.
    12. Smale, Melinda & Jayne, T.S., 2003. "Maize in Eastern and Southern Africa: 'seeds' of success in retrospect," EPTD discussion papers 97, International Food Policy Research Institute (IFPRI).
    13. Almas Heshmati & Yilma Mulugeta, 1996. "Technical efficiency of the Ugandan matoke farms," Applied Economics Letters, Taylor & Francis Journals, vol. 3(7), pages 491-494.
    14. Mochebelele, Motsamai T. & Winter-Nelson, Alex, 2000. "Migrant Labor and Farm Technical Efficiency in Lesotho," World Development, Elsevier, vol. 28(1), pages 143-153, January.
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