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The impact of agricultural extension on farm production in resettlement areas of Zimbabwe

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  • Trudy Owens
  • John Hoddinott

Abstract

In this paper, we revisit the contested issue of the impact of agricultural extension on farm production. We exploit two features of the data available to us: its longitudinal nature and explicit measures of farmer ability. We find that after controlling for innate productivity characteristics and farmer ability either using household fixed effects estimation, or by including a measure of farmer ability and village fixed effects, access to agricultural extension services, defined as receiving one or two visits per agricultural year, raises the value of crop production by about 15 per cent. This parameter estimate is statistically significant. However, we also find variability in these parameter estimates across individual crop years, with the impact being markedly different in drought and non-drought years. Collectively, these results suggest that although access to farm-level extension visits does increase productivity even after controlling for innate productivity characteristics and farmer ability, results from single-year cross-sectional studies should be treated with caution

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Bibliographic Info

Paper provided by University of Oxford, Department of Economics in its series Economics Series Working Papers with number WPS/2001-06.

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Date of creation: 01 Jan 2001
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Handle: RePEc:oxf:wpaper:wps/2001-06

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  1. Halvorsen, Robert & Palmquist, Raymond, 1980. "The Interpretation of Dummy Variables in Semilogarithmic Equations," American Economic Review, American Economic Association, American Economic Association, vol. 70(3), pages 474-75, June.
  2. Jan Willem Gunning & John Hoddinott & Bill Kinsey & Trudy Owens, 2000. "Revisiting forever gained: Income dynamics in the resettlement areas of Zimbabwe, 1983-96," Journal of Development Studies, Taylor & Francis Journals, Taylor & Francis Journals, vol. 36(6), pages 131-154.
  3. Birkhaeuser, Dean & Evenson, Robert E & Feder, Gershon, 1991. "The Economic Impact of Agricultural Extension: A Review," Economic Development and Cultural Change, University of Chicago Press, vol. 39(3), pages 607-50, April.
  4. Rosenzweig, Mark R & Wolpin, Kenneth I, 1986. "Evaluating the Effects of Optimally Distributed Public Programs: ChildHealth and Family Planning Interventions," American Economic Review, American Economic Association, American Economic Association, vol. 76(3), pages 470-82, June.
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