Review of the U.S. Army Corps of Engineers Restructured Upper Mississippi-Illinois River Waterway Feasibility Study (2004) / Chapter Skim
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Appendix A: Spatial Equilibrium Models and the U.S. Grain Sector
Appendix A: Spatial Equilibrium Models and the U.S. Grain Sector
Pages 39-44
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From page 39... ...
in future years depends on many factors, including the following: the amount of grain grown in the river basin area, which depends on the cost of growing grains and alternative commodities compared to the price at which grains and alternative commodities can be sold, since the land could be used for other crops or left fallow; the amount of grain grown in other areas of the world, particularly Brazil and Argentina, and the price at which it is offered for export; the world demand for grain, particularly the demand for imported grain In each nation, which depends on population, income, home agricultural output, tastes, and the world price of meat for importation; .
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From page 40... ...
This model includes a traffic routing component and a simple reduced form economic model for estimating the effect of shipping cost on barge movements. ESSENCE is not a spatial equilibrium model.
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Numerous spatial equilibrium models of the U.S. crop sector have been developed to address issues relating to interregional trade and agricultural policy, while others have featured considerable transportation system detail for purposes of evaluating transportation policy and infrastructure issues.
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regions, 9 Mexican regions, and 24 foreign excess demand regions. Embedded in the United States and Mexico portions of the models are extensive transportation networks that connect excess supply regions with excess demand regions and ports via truck, rail, and barge costs or rates.
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From page 43... ...
As an example, in Iowa there are eight excess supply regions and one excess demand region. The typical excess supply region in Iowa is linked to 3 barge-loading sites (2 on the Mississippi River and 1 on the Missouri River)
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From page 44... ...
1981. Quadratic single and multiple-commodity models of spatial equilibrium: A simplified exposition.
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