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Revisiting Quality-Adjusted Price and Quantity Indices for Pesticides

Author

Listed:
  • Nehring, Richard F.
  • Hallahan, Charlie
  • Fernandez-Cornejo, Jorge
  • Wang, Sun-Ling
  • Wechsler, Seth
  • Hart, Jarrett
  • Mosheim, Roberto

Abstract

This study extends previous research, which calculated quality-adjusted price and quantity indices for the pesticides applied to corn, soybeans, cotton, and sorghum using hedonic methods (Fernandez-Cornejo and Jans, 1995). We extend the analysis through 2008 and make several econometric improvements. The analysis proceeds as follows: First, Zivot-Andrews tests are used to determine whether there are structural breaks in the data generating process. Next, we use hedonic regressions to control for pesticide quality characteristics including potency, toxicity, and persistence across active ingredients. Finally, the regression results are used to obtain preliminary estimates of the quality-adjusted price and quantity indices.

Suggested Citation

  • Nehring, Richard F. & Hallahan, Charlie & Fernandez-Cornejo, Jorge & Wang, Sun-Ling & Wechsler, Seth & Hart, Jarrett & Mosheim, Roberto, 2015. "Revisiting Quality-Adjusted Price and Quantity Indices for Pesticides," 2015 AAEA & WAEA Joint Annual Meeting, July 26-28, San Francisco, California 205317, Agricultural and Applied Economics Association.
    • Handle: RePEc:ags:aaea15:205317
    DOI: 10.22004/ag.econ.205317
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    References listed on IDEAS

    as
    1. Raymond B. Palmquist, 1989. "Land as a Differentiated Factor of Production: A Hedonic Model and Its Implications for Welfare Measurement," Land Economics, University of Wisconsin Press, vol. 65(1), pages 23-28.
    2. Bruce E. Hansen, 2001. "The New Econometrics of Structural Change: Dating Breaks in U.S. Labour Productivity," Journal of Economic Perspectives, American Economic Association, vol. 15(4), pages 117-128, Fall.
    3. Clemente, Jesus & Montanes, Antonio & Reyes, Marcelo, 1998. "Testing for a unit root in variables with a double change in the mean," Economics Letters, Elsevier, vol. 59(2), pages 175-182, May.
    4. Jack E. Triplett & Richard J. McDonald, 1977. "Assessing The Quality Error In Output Measures: The Case Of Refrigerators," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 23(2), pages 137-156, June.
    5. Triplett, Jack E & McDonald, Richard J, 1977. "Assessing the Quality Error in Output Measures: The Case of Refrigerators," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 23(2), pages 137-156, June.
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    Keywords

    Crop Production/Industries; Environmental Economics and Policy; Productivity Analysis; Research Methods/ Statistical Methods;
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