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Econometric Analysis of Grading Standards: The Ordered Fractional Approach

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  • Kentaro Kawasaki
  • Erik Lichtenberg

Abstract

We present a method for estimating the quality of production when quality is measured by discrete grades and is thus both ordinal and fractional. Monte Carlo experiments indicate that our method estimates average partial effects of quality determinants more accurately than linear estimators, and provides estimates with low bias even with weak instruments. An application of the model to wheat production in Japan demonstrates the importance of disease control in determining wheat grade. Weather variable coefficients suggest that climate change could actually improve wheat quality in Japan, thereby allowing farmers to reduce fungicide use and other inputs, as well as switch varieties.

Suggested Citation

  • Kentaro Kawasaki & Erik Lichtenberg, 2014. "Econometric Analysis of Grading Standards: The Ordered Fractional Approach," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 96(1), pages 345-365.
    • Handle: RePEc:oup:ajagec:v:96:y:2014:i:1:p:345-365.
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    File URL: http://hdl.handle.net/10.1093/ajae/aat088
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    Cited by:

    1. Nicole M. Mason & Thomas S. Jayne & Nicolas van de Walle, 2017. "The Political Economy of Fertilizer Subsidy Programs in Africa: Evidence from Zambia," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 99(3), pages 705-731.
    2. Nie, Wenjing & Li, Taiping & Zhu, Liqun, 2020. "Market demand and government regulation for quality grading system of agricultural products in China," Journal of Retailing and Consumer Services, Elsevier, vol. 56(C).
    3. Kawasaki, Kentaro & Lichtenberg, Erik, 2015. "Quality versus Quantity Effects of Pesticides: Joint Estimation of Quality Grade and Crop Yield," 2015 AAEA & WAEA Joint Annual Meeting, July 26-28, San Francisco, California 204848, Agricultural and Applied Economics Association.
    4. Nie, Wenjing & Abler, David & Li, Taiping, 2021. "Grading attribute selection of China's grading system for agricultural products: What attributes benefit consumers more?," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 93(C).
    5. Brown, Sarah & Gray, Daniel & Harris, Mark N. & Spencer, Christopher, 2016. "Portfolio Allocation, Income Uncertainty and Households' Flight from Risk," IZA Discussion Papers 10408, Institute of Labor Economics (IZA).
    6. Brown, Sarah & Gray, Daniel & Harris, Mark N. & Spencer, Christopher, 2021. "Household portfolio allocation, uncertainty, and risk," Journal of Empirical Finance, Elsevier, vol. 63(C), pages 96-117.

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