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| Registros recuperados: 28 | |
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| Hudson, Darren; Ethridge, Don E.; Segarra, Eduardo. |
| Theory and analysis of price information and its importance have typically assumed that the information is correct. Additionally, most analyses have centered on general price information assuming homogeneous products. This paper examines the implications of incorrect price information on the basis of quality, with evidence from prior research on cotton prices used as an illustration. Results of a conceptual analysis indicate that quality has direct implications on the production and marketing process. Incorrect information on prices of different quality leads to distortions in the market and market inefficiency. |
| Tipo: Report |
Palavras-chave: Agricultural and Food Policy; Demand and Price Analysis. |
| Ano: 1997 |
URL: http://purl.umn.edu/53174 |
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| Segarra, Eduardo; Kramer, Randall A.; Taylor, Daniel B.. |
| This paper analyzes the effects of uncertain soil loss in farm planning models. A disaggregated approach was used because of an interest in examining the impact of probabilistic soil loss constraints on farm level decision-making. A stochastic programming model was used to consider different levels of probability of soil loss. Traditional methods of analysis are shown to consistently overestimate net returns. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1985 |
URL: http://purl.umn.edu/29971 |
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| Huang, Wen-Yuan; Hyberg, Bengt; Segarra, Eduardo. |
| This paper analyzes a variable price support program (VPS) as an alternative to the current farm income support program. The VPS program can control U.S. agricultural production while protecting income of small farmers. The VPS is designed to alter farm level production decisions by reducing commodity support prices for each additional unit of production produced. This will serve to discourage excess aggregate production. The VPS program can be a mechanism to stabilize income of efficient small farms during the transition from the current farm programs to a free market environment. An illustrative study is used to target government program benefits to various farm-size groups. |
| Tipo: Journal Article |
Palavras-chave: Agricultural Finance. |
| Ano: 1990 |
URL: http://purl.umn.edu/29902 |
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| Ethridge, Don E.; Segarra, Eduardo; Johnson, Phillip N.; Malaga, Jaime E.; Rejesus, Roderick M.. |
| The department began producing formal reports of research activities in 1995/96 in conjunction with the establishment of the Cotton Economics Research Program; reports on Cotton Economics Research have been done annually since then. As our research programs expanded and diversified, we initiated a separate Departmental Research Report in 1998/99. With this annual report we are combining all research reporting into the single report, with more compartmentalization of research programs. This report highlights research activities in the Department of Agricultural and Applied Economics during fiscal year 2003/04. The overall program has been characterized by its flexibility in addressing varied issues of economic significance and is applied in nature,... |
| Tipo: Report |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 2004 |
URL: http://purl.umn.edu/31256 |
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| Velandia, Margarita M.; Rejesus, Roderick M.; Segarra, Eduardo; Bronson, Kevin. |
| This paper develops a management zone delineation procedure based on a spatial statistics approach and evaluates its economic impact for the case of Texas cotton production. With the use of an optimization model that utilizes a yield response function estimated through spatial econometric methods, we found that applying variable N rates based on the management zones delineated would result in higher cotton yields and higher net returns, above Nitrogen cost, relative to uniformly applying a single N rate for the whole field. In addition, a variable rate N application using the delineated management zones produced higher net returns, above Nitrogen cost, relative to a variable N rate system where the zones are based solely on landscape position. This is... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Management Zones; Exploratory Spatial Data Analysis; Site-Specific Nitrogen Management; Cotton Precision Agriculture.; Crop Production/Industries; Q1; Q16. |
| Ano: 2006 |
URL: http://purl.umn.edu/35387 |
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| Segarra, Eduardo; Taylor, Daniel B.. |
| A conceptual optimal control theory model which considers farm level decision making with respect to soil management is developed. A simplified version of the theoretical model is applied to the Piedmont area of Virginia. The model includes the productivity impacts of both soil erosion and technological progress. Both the theoretical model and its empirical application are improvements over previous efforts. Results suggest that farmers in the study area can achieve substantial reductions in soil erosion by adopting alternative farming practices. |
| Tipo: Journal Article |
Palavras-chave: Farm Management. |
| Ano: 1987 |
URL: http://purl.umn.edu/30204 |
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| Seo, Sangtaek; Segarra, Eduardo; Mitchell, Paul D.; Leatham, David J.. |
| Water scarcity has been a significant issue for several decades in the Texas High Plains, with agriculture identified as the main activity contributing to this scarcity. To address this issue, much effort has been devoted to developing and encouraging adoption of sophisticated irrigation systems with high levels of water application efficiency, such as the low energy precision application (LEPA) system, subsurface drip irrigation (SDI), and variable rate irrigation (VRI). In this study, the economic feasibility of these irrigation systems is evaluated in cotton farming in the Texas High Plains using a real options approach. Results find that only the LEPA system is profitable under current conditions. The VRI system is profitable with high cotton... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/21427 |
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| Segarra, Eduardo; Ethridge, Don E.; Deussen, Curtis R.; Onken, Arthur B.. |
| A dynamic optimization model which introduces an intertemporal nitrate-nitrogen residual function is used to derive and evaluate nitrogen fertilizer optimal decision rules for irrigated cotton production in the Southern High Plains of Texas. Results indicate that optimal nitrogen applications critically depend on initial nitrate-nitrogen levels and nitrogen-to-cotton price ratios. Also, the results indicate that single-year optimization leads to suboptimal nitrogen applications, which helps explain long-term cotton yield declines in the Southern High Plains of Texas; but single-year optimization does not significantly impact the net present value of returns of irrigated cotton operations. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1989 |
URL: http://purl.umn.edu/32359 |
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| Mooney, Daniel F.; Roberts, Roland K.; English, Burton C.; Lambert, Dayton M.; Larson, James A.; Velandia, Margarita M.; Larkin, Sherry L.; Marra, Michele C.; Martin, Steven W.; Mishra, Ashok K.; Paxton, Kenneth W.; Rejesus, Roderick M.; Segarra, Eduardo; Wang, Chenggang; Reeves, Jeanne M.. |
| Precision Farming by Cotton Producers in Twelve Southern States: Results from the 2009 Southern Cotton Precision Farming Survey |
| Tipo: Report |
Palavras-chave: Cotton; Precision farming; Survey; Agribusiness; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2010 |
URL: http://purl.umn.edu/91333 |
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| Watson, Susan; Segarra, Eduardo; Machado, Stephen; Bynum, Edsel; Archer, Thomas; Bronson, Kevin. |
| A dynamic optimization model is used to assess the profitability of precision and whole-field farming in corn production. Yield, on the average, was higher under whole-field farming practices, while net present value of returns was higher under precision farming, on the average, by 7.41% and 8.15%, respectively. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Precision farming; Mathematical optimization; Technology adoption; Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/35053 |
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| Registros recuperados: 28 | |
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