Equilibrium Displacement Mathematical Programming Models: Methodology and a Model of the U.S. Agricultural Sector
by David H Harrington and
Robert Dubman
Technical Bulletin No. (TB-1918) 61 pp, February 2008
The objective of this research is to extend and generalize the equilibrium displacement methodology by combining it with mathematical programming methods and existing knowledge of farm sector relationships to develop sectoral adjustment models that can operate in pure competition, monopoly/monopsony, or mixed-competition. A model of the U.S. agricultural sector at the national aggregate level is presented to illustrate the methods. An appendix contains a user's manual describing the operation of the model. Further appendices contain documentation of the structure of the spreadsheets, the programming tableau, and the SAS solution program.
Keywords: Equilibrium displacement models, positive mathematical programming, U.S. farm programs, direct payments, counter-cyclical payments, loan deficiency payments, conservation reserve
In this publication...
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Abstract, Contents, Pdf file 1,119 kb
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Summary, Pdf file 92 kb
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Introduction, Pdf file 86 kb
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EDMP Methodology, Pdf file 195 kb
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Modeling the Supply Side, Pdf file 84 kb
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Modeling the Demand Side, Pdf file 52 kb
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Modeling Agricultural Policies and Programs, Pdf file 119 kb
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Model Calibration, Pdf file 68 kb
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What Do Gradients Mean?, Pdf file 50 kb
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Structure of the Model, Pdf file 97 kb
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Solving the Model, Pdf file 42 kb
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Supply Parameters, Pdf file 63 kb
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Implicit Acreage- and Supply-Response Elasticities, Pdf file 46 kb
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Demand Parameters, Pdf file 59 kb
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Government Program Parameters, Pdf file 50 kb
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Post-Optimal Calculations of Performance Variables, Pdf file 96 kb
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References, Pdf file 109 kb
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Appendix I: User's Manual, Pdf file 111 kb
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Appendix II: The SAS Excel Link Program, Pdf file 61 kb
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Appendix III: Model Spreadsheets, Pdf file 80 kb
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Entire report, Pdf file 1,503 kb
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