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Models For Evaluating Economic Impacts Of Policy Changes: A Comparison

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  • Webb, Shwu-Eng H.
  • Kuchler, Fred

Abstract

Three Economic Research Service cross-commodity models were evaluated to determine the advantages and disadvantages of using them for policy analyses. The three economic models are: FAPSIM (Food and Agricultural Policy Simulator), AGSIM (Agricultural Econometric-Simulation Model), and HYBRID (Econometric-Programming Model). The proposed herbicide use restriction of trifluralin on soybeans is used for comparison of the model results. Although the models have many similarities, they do not perfectly substitute for one another. Appropriate model use depends on the question to be answered

Suggested Citation

  • Webb, Shwu-Eng H. & Kuchler, Fred, 1984. "Models For Evaluating Economic Impacts Of Policy Changes: A Comparison," Staff Reports 276832, United States Department of Agriculture, Economic Research Service.
    • Handle: RePEc:ags:uerssr:276832
    DOI: 10.22004/ag.econ.276832
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    References listed on IDEAS

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    1. Thomas H. Naylor & J. M. Finger, 1967. "Verification of Computer Simulation Models," Management Science, INFORMS, vol. 14(2), pages 92-101, October.
    2. Salathe, Larry E. & Price, J. Michael & Gadson, Kenneth E., 1982. "The Food and Agricultural Policy Simulator," Journal of Agricultural Economics Research, United States Department of Agriculture, Economic Research Service, vol. 34(2), pages 1-15, April.
    3. Unknown, 1978. "System Theory Applications to Agricultural Modeling," Economics Statistics and Cooperative Services (ESCS) Reports 142836, United States Department of Agriculture, Economic Research Service.
    4. Just, Richard E & Hueth, Darrell L, 1979. "Welfare Measures in a Multimarket Framework," American Economic Review, American Economic Association, vol. 69(5), pages 947-954, December.
    5. Gadson, Kenneth E. & Price, J. Michael & Salathe, Larry E., 1982. "Food And Agricultural Policy Simulator (Fapsim): Structural Equations And Variable Definitions," Staff Reports 276743, United States Department of Agriculture, Economic Research Service.
    6. Collins, Glenn S. & Taylor, C. Robert, 1983. "TECHSIM: A Regional Field Crop and National Livestock Econometric Simulation Model," Journal of Agricultural Economics Research, United States Department of Agriculture, Economic Research Service, vol. 35(2), pages 1-18, April.
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    Cited by:

    1. Suguiyama, Luis & Osteen, Craig, 1988. "The Economic Importance of Cotton Insects and Mites," Agricultural Economic Reports 308062, United States Department of Agriculture, Economic Research Service.
    2. Luis F. Suguiyama & Katherine H. Reichelderfer, 1987. "Regional variation in farm input use: The case of pesticides," Agribusiness, John Wiley & Sons, Ltd., vol. 3(2), pages 221-234.

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