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| Registros recuperados: 57 | |
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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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| Schaible, Glenn D.; Kim, C.S.; Lambert, Dayton M.. |
| This study used the 2005 ERS CEAP-ARMS data for corn production to first compare key operator, field, farm, economic, and environmental characteristics of conservation program participants with non-participants, by farm-size class. We then estimate a cost-function based technology adoption model of producer decisions regarding the allocation of field-level acres between corn production and infield and perimeter-field conservation structures to examine how these conservation choices differ between program participants and non-participants, while accounting for differences in other field, farm, and environmental factors. Our null hypothesis is that the average conservation structural practice acres across U.S. corn acres supplied by growers participating... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9812 |
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| Musser, Wesley N.; Lambert, Dayton M.; Daberkow, Stan G.. |
| The recent volatility of energy prices has numerous policy implications for agriculture. A better understanding of the factors associated with energy consumption as related to crop production management decisions and technology use may provide insight about how producers might respond to program or market incentives targeting energy use in particular, and soil and water conservation in general. Adoption of minimum tillage could reduce erosion and improved fertilizer management practices could reduce nitrogen runoff. Energy costs may be reduced with adoption of reduced tillage technology, improved drying and irrigation systems, or more careful attention to the application and timing of fertilizers. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Energy; Fuel; Nitrogen; Farm management; Technology; Crop Production/Industries; Q12; Q40. |
| Ano: 2006 |
URL: http://purl.umn.edu/21063 |
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| Lambert, Dayton M.; Lowenberg-DeBoer, James; Griffin, Terry W.; Peone, J.; Payne, Tim; Daberkow, Stan G.. |
| Precision agriculture (PA) technology has been on the market for over ten years. Global Positioning Systems (GPS), Geographic Information Systems (GIS), yield monitors, variable rate technologies (VRT) and other spatial management technologies are being used by farmers worldwide, but questions remain about the profitability of the technology and its future. This paper summarizes: 1) data on adoption of PA technology worldwide, 2) review of PA economics studies and 3) efforts to make better use of yield monitor and other sensor data in crop management. The adoption estimates are based on reports by an international network of collaborators. This paper draws on USDA ARMS data to update U.S. PA adoption numbers. The PA profitability summary goes beyond... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agribusiness. |
| Ano: 2004 |
URL: http://purl.umn.edu/28615 |
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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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| Lambert, Dayton M.; Malzer, Gary L.; Lowenberg-DeBoer, James. |
| This paper compares two estimation methods of a three-stage least squares (3SLS) system of equations, corrected for spatial autocorrelation. The modeling approach is novel in that it is an extension of Anselin's (1988) seemingly unrelated regression (SUR) space-time spatial error model for panel data. An empirical comparison of the quasi-maximum likelihood (QML) estimation of the equation system, and Kelejian and Prucha's general moments (GM) estimation approach is presented. The model and estimation procedures introduced in this study are easily extended to other economic, agronomic, or biological models that must incorporate spatial and temporal effects in the model specification, and overcome simultaneous equation bias. The empirical example used in... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2004 |
URL: http://purl.umn.edu/28667 |
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| Paxton, Kenneth W.; Mishra, Ashok K.; Chintawar, Sachin; Larson, James A.; Roberts, Roland K.; English, Burton C.; Lambert, Dayton M.; Marra, Michele C.; Larkin, Sherry L.; Reeves, Jeanne M.; Martin, Steven W.. |
| Many studies on the adoption of precision technologies have generally used logit models to explain the adoption behavior of individuals. This study investigates factors affecting the number of specific types of precision agriculture technologies adopted by cotton farmers. Particular attention is given to the influence of spatial yield variability on the number of precision farming technologies adopted, using a Count data estimation procedure and farm-level data. Results indicate that farmers with more within-field yield variability adopted a larger number of precision agriculture technologies. Younger and better educated producers and the number of precision agriculture technologies were significantly correlated. Finally, farmers using computers for... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Precision technologies; Poisson; Negative Binomial; Count-data method; GIS; Education; Cotton; Agricultural and Food Policy; Farm Management; Labor and Human Capital; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/56486 |
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| Lambert, Dayton M.; Wilcox, Michael D.; English, Alicia; Stewart, Lance A.. |
| The location of ethanol plants is determined by infrastructure, product and input markets, fiscal attributes of local communities, and state and federal incentives. This empirical analysis uses probit regression along with spatial clustering methods to analyze investment activity of ethanol plants at the county level for the lower U.S. 48 states from 2000 to 2007. The availability of feedstock dominates the site selection decision. Other factors, such as access to navigable rivers or railroads, product markets, producer credit and excise tax exemptions, and methyl tertiary-butyl ether bans provided some counties with a comparative advantage in attracting ethanol plants. |
| Tipo: Journal Article |
Palavras-chave: Cluster analysis; Comparative advantage; Ethanol production; Location model; Community/Rural/Urban Development; Environmental Economics and Policy; Political Economy; R1; R3. |
| Ano: 2008 |
URL: http://purl.umn.edu/45511 |
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| Grant, Jason H.; Lambert, Dayton M.. |
| Relative to trade in non-agricultural goods, progress in achieving agricultural trade liberalization under the GATT/WTO has been slow. Agricultural trade is characterized by persistently high levels of protection on a scale that is uncommon in non-agricultural trade. Article XXIV of the GATT, 1994 permits a group of countries to form a trade union whereby trade barriers are reduced or removed on all sectors of trade. Within regional trade agreements however, agricultural trade often receives special treatment, and in some cases, agriculture is completely exempt. Typically, debates over the effects of regional trade agreements have focused on welfare. In this study we seek to answer a more fundamental question of what effect these agreements have had on... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: International Relations/Trade. |
| Ano: 2005 |
URL: http://purl.umn.edu/19269 |
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| Brown, Jason P.; Lambert, Dayton M.; Florax, Raymond J.G.M.. |
| Attracting manufacturing investment is a frequently used rural development policy. Previous research in the location literature has informed policymakers which factors are most important for attracting new firm investment. Far less is known about the interaction of birth and death of establishments. A conceptual model of county-level investment in the U.S. manufacturing sector is developed from location theory and subsequent literature. Specifically, we test the relative importance of location factors influencing firm investment, and if these factors influence firm birth and death differently. Local factors include agglomeration due to localization, urbanization, and internal economies, market structure, labor quality, availability, and cost, market... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Location determinants; Manufacturing; Count models; Community/Rural/Urban Development; Research Methods/ Statistical Methods; L60; R11; R12. |
| Ano: 2009 |
URL: http://purl.umn.edu/49467 |
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| Cho, Seong-Hoon; Lambert, Dayton M.; Roberts, Roland K.; Kim, Seung Gyu. |
| This research evaluates the effects of a hypothetical land value tax as a smart growth policy to curtail urban sprawl in the mid-sized metropolitan areas of the Southeastern United States. The effectiveness of a hypothetical land value tax on moderating urban sprawl is determined by changes in demand for neighborhood open space, and its relationships with lot size and proximity to the central business district (CBD). Achieving this goal will (1) provide applied researchers with an empirical foundation from which the spatial dynamics of urban sprawl in local housing markets can be measured, and (2) provide policy makers, especially in the large and mid-sized metro areas of the Southeast, with an ex ante instrument through which alternative incentives... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Community/Rural/Urban Development; Land Economics/Use. |
| Ano: 2008 |
URL: http://purl.umn.edu/6150 |
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| Jenkins, Amanda; Velandia, Margarita M.; Lambert, Dayton M.; Roberts, Roland K.; Larson, James A.; English, Burton C.; Martin, Steven W.. |
| Precision farming information demanded by cotton producers is provided by various suppliers, including consultants, farm input dealerships, University Extension systems, and media sources. Factors associated with the decisions to select among information sources to search for precision farming information are analyzed using a multivariate probit regression accounting for correlation among the different selection decisions. Factors influencing these decisions are age, education, and income. These findings should be valuable to precision farming information providers who may be able to better meet their target clientele needs. |
| Tipo: Journal Article |
Palavras-chave: Extension; Information-source-use decisions; Media; Multivariate probit; Precision agriculture technologies; Private sources; Farm Management; Teaching/Communication/Extension/Profession. |
| Ano: 2011 |
URL: http://purl.umn.edu/117779 |
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| Lambert, Dayton M.; McNamara, Kevin T.; Garrett, Megan I.. |
| The influence product markets, agglomeration, labor, infrastructure, and government fiscal attributes had on manufacturing investment flows in Indiana between 2000 and 2004 were estimated using Poisson regression, geographically weighted regression, and a spatial general linear model. Counties with access to urbanization economies, product markets, available labor, a high-quality workforce, and transport infrastructure were more likely to attract manufacturing investment. These effects were magnified to some extent when inter-county spatial effects were modeled. The distributional assumptions of the spatial models are different, but both methods are useful for understanding the spatial context of the factors influencing manufacturing investment flows. |
| Tipo: Journal Article |
Palavras-chave: Geographically weighted regression; Location determinants; Location theory; Manufacturing site selection; Poisson spatial generalized linear model; Agribusiness; Industrial Organization; Productivity Analysis; R1; R3. |
| Ano: 2006 |
URL: http://purl.umn.edu/43752 |
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| Registros recuperados: 57 | |
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