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Biodiversity Conservation under an Imperfect Seed System: the Role of Community Seed Banking Scheme

  • Bezabih, Mintewab

    ()

    (Department of Economics, School of Economics and Commercial Law, Göteborg University)

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    The study is an empirical investigation of agrobiodiversity conservation decisions of small farmers in the central highlands of Ethiopia. The primary objective is to measure the effectiveness of Community Seed Banking (CSB) in enhancing diversity while providing productivity incentives. The analytical framework draws from the synergetic nature of the possible improvment of the working of the seed system and enhanced diversity. We employ Amemiya’s GLS estimator to investigate simultaneity between participation and the level of diversity. Our results indicate a significant impact of participation in CSB on farm-level agrobiodiversity. However, farmer knowledge and experience associated with biodiversity conservation were not found to have the expected reinforcing impact on the degree of biodiversity. CSB participation also led to a moderate productivity increase consistent with the need for such incentives to enhance diversity at a farm level. Our assessment of the performance of the GLS estimator yielded a significant discrepancy between the GLS and bootstrap estimates. This led to the conclusion that bootstrapping asymptotic estimations might be required for appropriate inference even when sample sizes are reasonably large.

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    File URL: http://hdl.handle.net/2077/2737
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    Paper provided by University of Gothenburg, Department of Economics in its series Working Papers in Economics with number 185.

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    Length: 17 pages
    Date of creation: 31 Oct 2005
    Date of revision:
    Handle: RePEc:hhs:gunwpe:0185
    Contact details of provider: Postal: Department of Economics, School of Business, Economics and Law, University of Gothenburg, Box 640, SE 405 30 GÖTEBORG, Sweden
    Phone: 031-773 10 00
    Web page: http://www.handels.gu.se/econ/

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    1. Heckman, James J, 1978. "Dummy Endogenous Variables in a Simultaneous Equation System," Econometrica, Econometric Society, vol. 46(4), pages 931-59, July.
    2. G. A. A. Wossink, 2003. "Biodiversity conservation by farmers: analysis of actual and contingent participation," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 30(4), pages 461-485, December.
    3. Samuel Benin & Berhanu Gebremedhin & Melinda Smale & John Pender & Simeon Ehui, 2003. "Determinants of Cereal Diversity in Communities and on Household Farms of the Northern Ethiopian Highlands," Working Papers 03-14, Agricultural and Development Economics Division of the Food and Agriculture Organization of the United Nations (FAO - ESA).
    4. Smale, Melinda & Bellon, Mauricio R & Aguirre Gomez, Jose Alfonso, 2001. "Maize Diversity, Variety Attributes, and Farmers' Choices in Southeastern Guanajuato, Mexico," Economic Development and Cultural Change, University of Chicago Press, vol. 50(1), pages 201-25, October.
    5. Amemiya, Takeshi, 1978. "The Estimation of a Simultaneous Equation Generalized Probit Model," Econometrica, Econometric Society, vol. 46(5), pages 1193-1205, September.
    6. Roberts, Russell D, 1987. "Financing Public Goods," Journal of Political Economy, University of Chicago Press, vol. 95(2), pages 420-37, April.
    7. Moser, Christine M. & Barrett, Christopher B., 2003. "The Complex Dynamics Of Smallholder Technology Adoption: The Case Of Sri In Madagascar," Working Papers 14735, Cornell University, Department of Applied Economics and Management.
    8. Heal, Geoffrey, 2004. "Economics of biodiversity: an introduction," Resource and Energy Economics, Elsevier, vol. 26(2), pages 105-114, June.
    9. L. Randall Wray & Stephanie Bell, 2004. "Introduction," Chapters, in: Credit and State Theories of Money, chapter 1 Edward Elgar.
    10. Zepeda, Lydia, 1994. "Simultaneity Of Technology Adoption And Productivity," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 19(01), July.
    11. Isabel Vanslembrouck & Guido Huylenbroeck & Wim Verbeke, 2002. "Determinants of the Willingness of Belgian Farmers to Participate in Agri-environmental Measures," Journal of Agricultural Economics, Wiley Blackwell, vol. 53(3), pages 489-511.
    12. Brush, Stephen B. & Taylor, J. Edward & Bellon, Mauricio R., 1992. "Technology adoption and biological diversity in Andean potato agriculture," Journal of Development Economics, Elsevier, vol. 39(2), pages 365-387, October.
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