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Forecasting Organic Food Prices: Emerging Methods for Testing and Evaluating Conditional Predictive Ability

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  • Gubanova, Tatiana
  • Lohr, Luanne
  • Park, Timothy A.

Abstract

Organic farmers, wholesalers, and retailers need price forecasts to improve their decision-making practices. This paper presents a methodology and protocol to select the best performing method from several time and frequency domain candidates. Weekly farmgate prices for organic fresh produce are used. Forecasting methods are evaluated on the basis of an aggregate accuracy measure and several out-of-sample predictive ability tests. A seasonal autoregressive method is recommended for all planning horizons. The role of better price forecasts for the agents who deal in less common organic produce is highlighted. A confirmation for the claim that the organic produce industry needs better farmgate price forecasts to grow is provided.

Suggested Citation

  • Gubanova, Tatiana & Lohr, Luanne & Park, Timothy A., 2005. "Forecasting Organic Food Prices: Emerging Methods for Testing and Evaluating Conditional Predictive Ability," 2005 Conference, April 18-19, 2005, St. Louis, Missouri 19045, NCR-134 Conference on Applied Commodity Price Analysis, Forecasting, and Market Risk Management.
    • Handle: RePEc:ags:ncrfiv:19045
    DOI: 10.22004/ag.econ.19045
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    File URL: https://ageconsearch.umn.edu/record/19045/files/cp05gu01.pdf
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    References listed on IDEAS

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    1. Raffaella Giacomini & Halbert White, 2006. "Tests of Conditional Predictive Ability," Econometrica, Econometric Society, vol. 74(6), pages 1545-1578, November.
    2. Henriksson, Roy D & Merton, Robert C, 1981. "On Market Timing and Investment Performance. II. Statistical Procedures for Evaluating Forecasting Skills," The Journal of Business, University of Chicago Press, vol. 54(4), pages 513-533, October.
    3. West, Kenneth D, 1996. "Asymptotic Inference about Predictive Ability," Econometrica, Econometric Society, vol. 64(5), pages 1067-1084, September.
    4. Mc Cracken, Michael W., 2000. "Robust out-of-sample inference," Journal of Econometrics, Elsevier, vol. 99(2), pages 195-223, December.
    5. Diebold, Francis X & Mariano, Roberto S, 2002. "Comparing Predictive Accuracy," Journal of Business & Economic Statistics, American Statistical Association, vol. 20(1), pages 134-144, January.
    6. William G. Tomek & Robert J. Myers, 1993. "Empirical Analysis of Agricultural Commodity Prices: A Viewpoint," Review of Agricultural Economics, Agricultural and Applied Economics Association, vol. 15(1), pages 181-202.
    7. Timothy A. Park & Luanne Lohr, 1996. "Supply and Demand Factors for Organic Produce," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(3), pages 647-655.
    8. Merton, Robert C, 1981. "On Market Timing and Investment Performance. I. An Equilibrium Theory of Value for Market Forecasts," The Journal of Business, University of Chicago Press, vol. 54(3), pages 363-406, July.
    9. Tomek, William G. & Myers, Robert J., 1993. "Empirical Analysis Of Agricultural Commodity Prices: A Viewpoint," Working Papers 6847, Cornell University, Department of Applied Economics and Management.
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    Cited by:

    1. Curtis, Kynda R. & Yeager, Irvin & Black, Brent & Drost, Daniel & Ward, Ruby, 2014. "Market and Pricing Potential for Extended Season Fresh Produce Sales: An Intermountain West Example," Journal of Food Distribution Research, Food Distribution Research Society, vol. 45(2), pages 1-20, July.

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