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

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Author Info
Bezabih, Mintewab () (Department of Economics, School of Economics and Commercial Law, Göteborg University)
Abstract

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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Publisher Info
Paper provided by Göteborg University, 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

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Postal: Department of Economics, School of Business, Economics and Law, Göteborg University Box 640, SE 405 30 GÖTEBORG, Sweden
Phone: 031-773 10 00
Web page: http://www.handels.gu.se/econ/
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Related research
Keywords: Agrobiodiversity; Seed system; Amemiya’s GLS; Bootstrapping;

Find related papers by JEL classification:
C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models
Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets
Q29 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Other

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  1. Amemiya, Takeshi, 1978. "The Estimation of a Simultaneous Equation Generalized Probit Model," Econometrica, Econometric Society, vol. 46(5), pages 1193-1205, September. [Downloadable!] (restricted)
  2. 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. [Downloadable!]
    Other versions:
  3. Heal, Geoffrey, 2004. "Economics of biodiversity: an introduction," Resource and Energy Economics, Elsevier, vol. 26(2), pages 105-114, June. [Downloadable!] (restricted)
  4. 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. [Downloadable!] (restricted)
  5. Zepeda, Lydia, 1994. "Simultaneity Of Technology Adoption And Productivity," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 19(01), July. [Downloadable!]
  6. 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.
  7. Katrin Oltmer & Peter Nijkamp & Raymond Florax & Floor Brouwer, 2000. "A Meta-Analysis of Environmental Impacts of Agri-Environmental Policies in the European Union," Tinbergen Institute Discussion Papers 00-083/3, Tinbergen Institute. [Downloadable!]
  8. Benin, Samuel & Gebremedhin, Berhanu & Smale, Melinda & Pender, John L. & Ehui, Simeon, 2003. "Determinants of cereal diversity in communities and on household farms of the Northern Ethiopian Highlands:," EPTD discussion papers 105, International Food Policy Research Institute (IFPRI). [Downloadable!]
    Other versions:
  9. G. A. A. Wossink, 2003. "Biodiversity conservation by farmers: analysis of actual and contingent participation," European Review of Agricultural Economics, Oxford University Press for the Foundation for the European Review of Agricultural Economics, vol. 30(4), pages 461-485, December.
  10. Roberts, Russell D, 1987. "Financing Public Goods," Journal of Political Economy, University of Chicago Press, vol. 95(2), pages 420-37, April. [Downloadable!] (restricted)
  11. Heckman, James J, 1978. "Dummy Endogenous Variables in a Simultaneous Equation System," Econometrica, Econometric Society, vol. 46(4), pages 931-59, July. [Downloadable!] (restricted)
    Other versions:
  12. Isabel Vanslembrouck & Guido Huylenbroeck & Wim Verbeke, 2002. "Determinants of the Willingness of Belgian Farmers to Participate in Agri-environmental Measures," Journal of Agricultural Economics, Blackwell Publishing, vol. 53(3), pages 489-511. [Downloadable!] (restricted)
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