Author

  • Francis Annan

    • Mississippi State University, USA
    • United States

  • Henry De-Graft Acquah

    • University of Cape Coast, Cape Coast, Ghana
    • Ghana

Abstract

This study investigates county-level corn yield trend models using quadratic and cubic trend estimations. The study empirically revealed that the cubic trend is more appropriate for yield data from the West, Midwest and South regions. The linear and the quadratic trend models were respectively found to be more appropriate for yield data from the Plains and Atlantic regions. Results suggest that the data should be allowed to determine the appropriate trend relationships to avoid trend misspecification. Additionally, the yield trends are found to be inconsistent across all the regions. Different locations tend to exhibit different yield trends. It is therefore recommended that differences between regions be recognized when we conduct yield trend tests and not to generalize our results to other regions.

Keywords

References

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How to Cite

Annan, F., & De-Graft Acquah, H. (2011). A Regional Analysis of Corn Yield Models: Comparing Quadratic versus Cubic Trends. Journal of Economics and Behavioral Studies, 3(6), 395-401. https://doi.org/10.22610/jebs.v3i6.296

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Keywords

Section

Research Paper

Published in

Vol. 3 No. 6 (2011) Volatility, Behaviour & Economic Modelling View issue contents

Published

2011-12-15

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