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| Registros recuperados: 80 | |
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| Jensen, Kimberly L.; Marra, Adrienne; Clark, Christopher D.; English, Burton C.. |
| This study examines consumers' WTP for reductions in greenhouse gas emissions from E85 as opposed to gasoline. Data were collected via a contingent choice exercise in a 2009 national online survey. As part of the fuel choice exercise, several fuel attributes were allowed to vary including emission reductions, import level, proximity of fuel availability, price, and fuel blend (E85 or regular gasoline). A random parameters model with demographics and attitudes interacted with emission reductions was estimated. The resulting estimates suggest that, overall the WTP for an emission reduction is not statistically significant. However, for some demographic and attitudinal profiles, the WTP is significant. An example profile includes younger age, female,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Willingness to Pay; Emission Reductions; E85; Consumer/Household Economics; Environmental Economics and Policy; Q41; Q51. |
| Ano: 2010 |
URL: http://purl.umn.edu/60916 |
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| English, Burton C.; Jensen, Kimberly L.; Menard, R. Jamey; Walsh, Marie E.; Torre Ugarte, Daniel de la; Brandt, Craig; Van Dyke, Jim; Hadley, Stanton. |
| Economic impacts of using biomass in Southeast United States coal-fired plants are estimated using a county-level biomass database; ORCED, a dynamic electricity distribution model that estimates feedstock value; ORIBAS, a GIS model that estimates feedstock transportation costs; and IMPLAN, an input-output model that determines the impacts of co-firing on economic activity. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/20200 |
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| Walton, Jonathan C.; Roberts, Roland K.; Lambert, Dayton M.; Larson, James A.; English, Burton C.; Larkin, Sherry L.; Martin, Steven W.; Marra, Michele C.; Paxton, Kenneth W.; Reeves, Jeanne M.. |
| Technology adoption in precision agriculture has received considerable attention, while abandonment has received little. Our objective was to identify factors motivating adoption and abandonment of precision soil sampling in cotton. Results indicate younger producers who farmed more cotton area, owned more of their cropland, planted more non-cotton area, used a computer, or used a Personal Digital Assistant (PDA) were more likely to adopt precision soil sampling. Those with more cotton area or who owned livestock were more likely to abandon, while those who used precision soil sampling longer, used a PDA, or used variable-rate fertilizer application were less likely to abandon. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6215 |
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| Roberts, Roland K.; English, Burton C.; Larson, James A.; Cochran, Rebecca L.; Goodman, W. Robert; Larkin, Sherry L.; Marra, Michele C.; Martin, Steven W.; Reeves, Jeanne M.; Shurley, W. Donald. |
| Precision Farming by Cotton Producers in Six Southern States: Results from the 2001 Southern Precision Farming Survey |
| Tipo: Report |
Palavras-chave: Cotton; Precision farming; Survey; Agribusiness; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2002 |
URL: http://purl.umn.edu/91331 |
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| Walton, Jonathan C.; Larson, James A.; Roberts, Roland K.; Lambert, Dayton M.; English, Burton C.; Larkin, Sherry L.; Marra, Michele C.. |
| This research analyzed the adoption of Personal Digital Assistants (PDA) and handheld Global Positioning System (GPS) devices in cotton production. Analysis using a logit model found that younger farmers who used a crop consultant, remote-sensing, variable-rate fertilizer, and reported greater yield variability had a higher probability of adopting. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2008 |
URL: http://purl.umn.edu/6839 |
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| English, Burton C.; Jensen, Kimberly L.; Menard, R. Jamey; Walsh, Marie E.; Brandt, Craig; Van Dyke, Jim; Hadley, Stanton. |
| The Southeastern United States depends on coal to supply 60% of its electricity needs. The region leads in CO2 emissions and ranks second in emissions of SO2 and NO2. Compared with coal, biomass feedstocks have lower emission levels of sulfur or sulfur compounds and can potentially reduce nitrogen oxide emissions. This study examines the economic impacts of cofiring level scenarios. Economic impacts are estimated for producing, collecting, and transporting feedstock; retrofitting coal-fired utilities for burning feedstock; operating cofired utilities; and coal displaced from burning the feedstock. |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy; Q42; R15. |
| Ano: 2007 |
URL: http://purl.umn.edu/6634 |
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| Walton, Jonathan C.; Larson, James A.; Roberts, Roland K.; Lambert, Dayton M.; English, Burton C.; Larkin, Sherry L.; Marra, Michele C.; Martin, Steven W.; Paxton, Kenneth W.; Reeves, Jeanne M.. |
| Personal digital assistants (PDA) and handheld global positioning systems (GPS) have become increasingly important in cotton production but little is known about their use. This research analyzed the adoption of PDA/handheld GPS devices in cotton production. A younger farmer who used a computer in farm management and had a positive perception of Extension had a greater likelihood of adopting the devices. In addition, farmers who used complementary remote sensing, plant mapping, and grid soil sampling information were more likely to use PDA/handheld GPS devices. Finally, the COTMAN in-field decision support program from Extension also positively impacted adoption. |
| Tipo: Journal Article |
Palavras-chave: Decision support; Information technology; Precision farming technology; Variable rate technology; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession; D21; Q12; Q16. |
| Ano: 2010 |
URL: http://purl.umn.edu/90671 |
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| Registros recuperados: 80 | |
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