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| Elobeid, Amani E.; Carriquiry, Miguel A.; Fabiosa, Jacinto F.; Mulik, Kranti; Hayes, Dermot J.; Babcock, Bruce A.; Dumortier, Jerome; Rosas, Francisco. |
| This analysis uses the 2011 FAPRI-CARD (Food and Agricultural Policy Research Institute–Center for Agricultural and Rural Development) baseline to evaluate the impact of four alternative scenarios on U.S. and world agricultural markets, as well as on world fertilizer use and world agricultural greenhouse gas emissions. A key assumption in the 2011 baseline is that ethanol support policies disappear in 2012. The baseline also assumes that existing biofuel mandates remain in place and are binding. Two of the scenarios are adverse supply shocks, the first being a 10% increase in the price of nitrogen fertilizer in the United States, and the second, a reversion of cropland into forestland. The third scenario examines how lower energy prices would impact world... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Afforestation; Energy price; Ethanol tax credit; Fertilizer; Partial equilibrium model; Policy analysis; Agricultural and Food Policy; Demand and Price Analysis; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/107043 |
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| Rosas, Francisco. |
| We introduce a world fertilizers model that is capable of producing fertilizer demand projections by crop, by country, by macronutrients, and by year. For each crop, the most relevant countries in terms of production, consumption, or trade are explicitly modeled. The remaining countries are modeled, for each crop, within a regional aggregate. The nutrient coverage includes nitrogen (N), phosphorous (P), and potassium (K). In this report we present the data and procedures used to 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 elasticities, projects each nutrient’s... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agriculture; Fertilizer; Nitrogen; Phosphorous; Policy analysis; Potassium; Projections; Crop Production/Industries; Demand and Price Analysis; Production Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/103223 |
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| Rosas, Francisco; Hayes, Dermot J.. |
| This paper develops a method to jointly estimate crop yield elasticities and area elasticities with respect to output prices based on a theoretically consistent model. The model uses a duality theory approach for the multi-output and multi-input firm, and introduces uncertainty in the level of target output which conditions the cost minimization problem, in the output prices and in the conditional input demand functions. The underlying production technology is conditioned on fixed inputs, both allocatable and non-allocatable. Up to our knowledge, there have been no theoretical developments of this type of models for multioutput technologies. Our approach is also novel because no previous model of this type has introduced the effects of allocatable fixed... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Yield elasticities; Area elasticities; Duality theory; Cost function; Uncertainty; Production Economics. |
| Ano: 2010 |
URL: http://purl.umn.edu/61345 |
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