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World Fertilizer Model—The World N-P-K Model
Rosas, Juan - Department of Economics, Iowa State University - 2011
We introduce a world fertilizers model that is capable of producing fertilizer demand projections by crop, by country … set up the model as well as the assumptions made. The fertilizer model interacts with the yield equations of the FAPRI …-ISU model (Food and Agricultural Policy Research Institute at Iowa State University), and by means of a set of production …
Persistent link: https://www.econbiz.de/10009023957
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Changing Nutritional Content of Food
Jensen, Helen H. - Department of Economics, Iowa State University - 2011
This chapter provides an overview of the changes in nutrient content of the food supply in the United States and other … availability in the food supply, including technology and fortification, are described and discussed in terms of implications for …
Persistent link: https://www.econbiz.de/10008871941
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The Status of Labor-Saving Mechanization in Fruits and Vegetables
Huffman, Wallace E. - Department of Economics, Iowa State University - 2010
 The objective of this paper is to examine the status of labor-saving mechanization in U.S. fruit and vegetable harvesting. Fruit and vegetable harvest mechanization has several potential advantages: reduced harvest costs, eliminate problems associated with finding good quality harvest labor,...
Persistent link: https://www.econbiz.de/10008499954
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Crop Yield Skewness Under Law of Minimum Technology
Hennessy, David A. - Department of Economics, Iowa State University - 2012
No satisfactory motivation has been forwarded in favor of any crop yield distribution, including thenormal. This article explores the foundations of yield distributions for the Law of the Minimum resourceconstraint technology at the plot level of analysis.With independent, identical, uniform...
Persistent link: https://www.econbiz.de/10010539741
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An Empirical Analysis of the Determinants of Marketing Contract Structures for Corn and Soybeans
Paulson, Nicholas D. - Department of Economics, Iowa State University - 2010
Contracts serve as coordination mechanisms which allocate value, risk, and decision rightsacross buyers and sellers. The use of marketing contracts in agriculture, specifically for crop production,has been increasing over the past decade. This study investigates the determinants ofagricultural...
Persistent link: https://www.econbiz.de/10008503793
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Agricultural Land Elasticities in the United States and Brazil
Barr, Kanlaya Jintanakul - Department of Economics, Iowa State University - 2011
The elasticity of aggregate supply of cropland is one key to understandingthe degree to which policy-induced increases in demand for biofuel feedstocksor agricultural CO2 offsets will result in higher prices or expanded cropproduction. We report land supply elasticities for the United States and...
Persistent link: https://www.econbiz.de/10010616492
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The US Gestation Stall Debate
Schulz, Lee L.; Tonsor, Glynn T. - Department of Economics, Iowa State University - 2015
While modern swine production systems rely on confinement production, there are calls to reduce or eliminate the use of gestation stalls. To understand the economic aspects of this debate, this article reviews the structural evolution of the industry, the underlying legal framework in animal...
Persistent link: https://www.econbiz.de/10011183897
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Land Allocation Effects of the Global Ethanol Surge: Predictions from the International FAPRI Model
Fabiosa, Jacinto F.; Beghin, John C.; Dong, Fengxia; … - Department of Economics, Iowa State University - 2009
the multi-market multi-commodity international FAPRI model. The model incorporates the tradeoffs between biofuel, feed …, and food production and consumption and international feedback effects of the emergence through world commodity prices and …
Persistent link: https://www.econbiz.de/10005441844
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How Coupled Are Decoupled Farm Payments? A Review of the Evidence
Bhaskar, Arathi; Beghin, John C. - Department of Economics, Iowa State University - 2007
This survey paper explores the literature on decoupling of farm programs that has emerged in the last 10 years. The paper identifies and assesses the various channels of potential coupling of decoupled farm payments and provides taxonomy of coupling mechanisms found in theoretical and empirical...
Persistent link: https://www.econbiz.de/10005436905
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Measuring Public Agricultural Research Capital and Its Contribution to State Agricultural Productivity
Huffman, Wallace - Department of Economics, Iowa State University - 2009
A methodology for measuring public agricultural research capital is developed and described for the first time, new public agricultural research capital measures for each of the 48 contiguous US states, 1970-1999, are presented, and a new econometric analysis of the contribution of public...
Persistent link: https://www.econbiz.de/10008599300