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Modeling Impacts Of Soil Conservation On Productivity And Yield Variability: Evidence From A Heteroskedastic Switching Regression

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  • Shively, Gerald E.

Abstract

The impact of soil conservation adoption on yield and yield risk is investigated using a conditionally heteroskedastic production function with endogenous switching. Analysis shows that controlling for plot-specific factors, adopters exhibit lower yields and higher yield variance than non-adopters. Regression results indicate soil conservation increases yields and reduces yield variance.

Suggested Citation

  • Shively, Gerald E., 1998. "Modeling Impacts Of Soil Conservation On Productivity And Yield Variability: Evidence From A Heteroskedastic Switching Regression," 1998 Annual meeting, August 2-5, Salt Lake City, UT 20930, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
  • Handle: RePEc:ags:aaea98:20930
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    File URL: http://purl.umn.edu/20930
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    References listed on IDEAS

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    1. MacKinnon, James G. & White, Halbert & Davidson, Russell, 1983. "Tests for model specification in the presence of alternative hypotheses : Some further results," Journal of Econometrics, Elsevier, vol. 21(1), pages 53-70, January.
    2. Greene, William H, 1981. "Sample Selection Bias as a Specification Error: Comment," Econometrica, Econometric Society, vol. 49(3), pages 795-798, May.
    3. Shively, Gerald E., 1997. "Consumption risk, farm characteristics, and soil conservation adoption among low-income farmers in the Philippines," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 17(2-3), December.
    4. Lutz, Ernst & Pagiola, Stefano & Reiche, Carlos, 1994. "The Costs and Benefits of Soil Conservation: The Farmers' Viewpoint," World Bank Research Observer, World Bank Group, vol. 9(2), pages 273-295, July.
    5. Breusch, T S & Pagan, A R, 1979. "A Simple Test for Heteroscedasticity and Random Coefficient Variation," Econometrica, Econometric Society, vol. 47(5), pages 1287-1294, September.
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    Cited by:

    1. Shively, Gerald E., 1999. "Risks and returns from soil conservation: evidence from low-income farms in the Philippines," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 21(1), August.
    2. Zhunusova, Eliza & Kyalo Willy, Daniel & Holm-Müller, Karin, 2013. "An Analysis of Returns to Integrated Soil Conservation Practices in the Lake Naivasha Basin, Kenya," 2013 AAAE Fourth International Conference, September 22-25, 2013, Hammamet, Tunisia 160676, African Association of Agricultural Economists (AAAE).

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