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Yellow corn wholesale price forecasts via the neural network

Author

Listed:
  • Xiaojie Xu
  • Yun Zhang

Abstract

Purpose - Forecasts of commodity prices are vital issues to market participants and policy makers. Those of corn are of no exception, considering its strategic importance. In the present study, the authors assess the forecast problem for the weekly wholesale price index of yellow corn in China during January 1, 2010–January 10, 2020 period. Design/methodology/approach - The authors employ the nonlinear auto-regressive neural network as the forecast tool and evaluate forecast performance of different model settings over algorithms, delays, hidden neurons and data splitting ratios in arriving at the final model. Findings - The final model is relatively simple and leads to accurate and stable results. Particularly, it generates relative root mean square errors of 1.05%, 1.08% and 1.03% for training, validation and testing, respectively. Originality/value - Through the analysis, the study shows usefulness of the neural network technique for commodity price forecasts. The results might serve as technical forecasts on a standalone basis or be combined with other fundamental forecasts for perspectives of price trends and corresponding policy analysis.

Suggested Citation

  • Xiaojie Xu & Yun Zhang, 2023. "Yellow corn wholesale price forecasts via the neural network," EconomiA, Emerald Group Publishing Limited, vol. 24(1), pages 44-67, April.
    • Handle: RePEc:eme:econpp:econ-05-2022-0026
    DOI: 10.1108/ECON-05-2022-0026
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