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Estimation Of Efficient Regression Models For Applied Agricultural Economics Research

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  • Ramirez, Octavio A.
  • Misra, Sukant K.
  • Nelson, Jeannie

Abstract

This paper proposes and explores the use of a partially adaptive estimation technique to improve the reliability of the inferences made from multiple regression models when the dependent variable is not normally distributed. The relevance of this technique for agricultural economics research is evaluated through Monte Carlo simulation and two mainstream applications: A time-series analysis of agricultural commodity prices and an empirical model of the West Texas cotton basis. It is concluded that, given non-normality, this technique can substantially reduce the magnitude of the standard errors of the slope parameter estimators in relation to OLS, GLS and other least squares based estimation procedures, in practice, allowing for more precise inferences about the existence, sign and magnitude of the effects of the independent variables on the dependent variable of interest. In addition, the technique produces confidence intervals for the dependent variable forecasts that are more efficient and consistent with the observed data. Key Words: Efficient regression models, partially adaptive estimation, non-normality, skewness, heteroskedasticity, autocorrelation.

Suggested Citation

  • Ramirez, Octavio A. & Misra, Sukant K. & Nelson, Jeannie, 2002. "Estimation Of Efficient Regression Models For Applied Agricultural Economics Research," 2002 Annual meeting, July 28-31, Long Beach, CA 19904, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
    • Handle: RePEc:ags:aaea02:19904
    DOI: 10.22004/ag.econ.19904
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    References listed on IDEAS

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    1. H.J. Bierens, 1981. "Robust Methods and Asymptotic Theory in Nonlinear Econometrics," Statistica Neerlandica, Netherlands Society for Statistics and Operations Research, vol. 35(3), pages 173-173, September.
    2. Seamon, V. Frederick & Kahl, Kandice H., 2000. "An Analysis Of Factors Affecting The Regional Cotton Basis," 2000 Conference, April 17-18 2000, Chicago, Illinois 18924, NCR-134 Conference on Applied Commodity Price Analysis, Forecasting, and Market Risk Management.
    3. McDonald, James B., 1989. "Partially adaptive estimation of ARMA time series models," International Journal of Forecasting, Elsevier, vol. 5(2), pages 217-230.
    4. Krinsky, Itzhak & Robb, A Leslie, 1986. "On Approximating the Statistical Properties of Elasticities," The Review of Economics and Statistics, MIT Press, vol. 68(4), pages 715-719, November.
    5. Charles B. Moss & J. S. Shonkwiler, 1993. "Estimating Yield Distributions with a Stochastic Trend and Nonnormal Errors," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 75(4), pages 1056-1062.
    6. McDonald, James B. & Newey, Whitney K., 1988. "Partially Adaptive Estimation of Regression Models via the Generalized T Distribution," Econometric Theory, Cambridge University Press, vol. 4(3), pages 428-457, December.
    7. Newey, Whitney K., 1988. "Adaptive estimation of regression models via moment restrictions," Journal of Econometrics, Elsevier, vol. 38(3), pages 301-339, July.
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    Cited by:

    1. Shahidul Islam & Subhadip Ghosh & Mohua Podder, 2022. "Fifty years of agricultural development in Bangladesh: a comparison with India and Pakistan," SN Business & Economics, Springer, vol. 2(7), pages 1-41, July.
    2. Manamba EPAPHRA & John MASSAWE, 2016. "Investment and Economic Growth: An Empirical Analysis for Tanzania," Turkish Economic Review, KSP Journals, vol. 3(4), pages 578-609, December.
    3. Manamba EPAPHRA, 2016. "Determinants of Export Performance in Tanzania," Journal of Economics Library, KSP Journals, vol. 3(3), pages 470-487, September.

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