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	Provedor de dados AgEcon (27) Autor Larkin, Sherry L. (27) English, Burton C. (15) Larson, James A. (15) Roberts, Roland K. (15) Marra, Michele C. (14) Martin, Steven W. (13) Reeves, Jeanne M. (12) Paxton, Kenneth W. (9) Lambert, Dayton M. (8) Cochran, Rebecca L. (5) Adams, Charles M. (4) Goodman, W. Robert (4) Mishra, Ashok K. (4) Shurley, W. Donald (4) Walton, Jonathan C. (4) Alavalapati, Janaki R.R. (2) Chintawar, Sachin (2) Lee, Donna J. (2) Perruso, Larry (2) Rejesus, Roderick M. (2) Mais... Palavra-chave Cotton (9) Farm Management (8) Research and Development/Tech Change/Emerging Technologies (8) Resource /Energy Economics and Policy (8) Agribusiness (6) Crop Production/Industries (6) Precision farming (5) Production Economics (4) Q16 (4) Q24 (4) Land Economics/Use (3) Precision technologies (3) Q12 (3) Survey (3) D21 (2) Education (2) Poisson (2) Q57 (2) Technology adoption (2) Willingness to pay (2) Mais... Tipo do documento Conference Paper or Presentation (14) Journal Article (10) Report (3) Ano 2011 (2) 2010 (4) 2008 (5) 2007 (1) 2006 (3) 2005 (2) 2004 (4) 2003 (1) 2002 (2) 2001 (1) 1998 (2) Mais... País United States (27) Idioma Inglês (27)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 27 Primeira ... 1 2 ... Última Factors Affecting Perceived Improvements in Environmental Quality from Precision Farming AgEcon Larkin, Sherry L.; Perruso, Larry; Marra, Michele C.; Roberts, Roland K.; English, Burton C.; Larson, James A.; Cochran, Rebecca L.; Martin, Steven W.. This study identified the factors that influenced whether farmers in the Southeastern United States perceived an improvement in environmental quality from adopting precision farming technologies (PFTs). Farmers with larger farms or higher yields were more likely to believe that they observed positive externalities associated with PFTs. Farmers who found PFTs profitable or who believed input reduction was important had higher probabilities whereas those with higher incomes or who were more dependent on farm income were less likely to perceive such benefits. Interestingly, the importance of environmental quality and length of time using PFTs were not found to affect the probability of perceiving an improvement in environmental quality. Tipo: Journal Article Palavras-chave: Precision agriculture; Site-specific farming; Variable rate application; C25; Q12; Q24. Ano: 2005 URL: http://purl.umn.edu/42787 Valuing Recreational Benefits of a National Park in Andean Colombia AgEcon Alvarez, Sergio; Larkin, Sherry L.. Protected undeveloped areas are an important tool for land conservation in developing nations. Efficient land allocation decisions and resource management requires knowledge of non-market benefits. Using travel cost and contingent valuation data from on-site interviews and secondary data on visitation, this study will value a national park in Columbia. Tipo: Conference Paper or Presentation Palavras-chave: Consumer surplus; Non-market valuation; Willingness to pay; Zonal travel cost; International Development; Resource /Energy Economics and Policy; Q24; Q26; Q57. Ano: 2008 URL: http://purl.umn.edu/6732 ADOPTION OF SPATIAL INFORMATION GATHERING TECHNOLOGIES AND VARIABLE RATE INPUT APPLICATION TECHNOLOGIES BY COTTON FARMERS IN THE SOUTHEAST AgEcon Martin, Steven W.; Roberts, Roland K.; English, Burton C.; Larson, James A.; Cochran, Rebecca L.; Goodman, W. Robert; Larkin, Sherry L.; Marra, Michele C.; Shurley, W. Donald; Reeves, Jeanne M.. Probit analysis identified factors influencing adoption of precision farming technologies by Southeastern cotton farmers. Younger, more educated farmers who operated larger farms and were optimistic about the future of precision farming were most likely to adopt site-specific information technology. The probability of adopting variable rate input application technology was higher for younger farmers who operated larger farms, owned more of the land they farmed, were more informed about the costs and benefits of precision farming, and were optimistic about the future of precision farming. Computer use was not important possibly because custom hiring shifts the burden of computer use to agribusiness firms. Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies. Ano: 2004 URL: http://purl.umn.edu/34768 POLICY IMPLICATIONS OF RESTRICTED ACCESS STRATEGIES FOR MULTISPECIES FISHERIES AgEcon Hutchinson, Sharon D.; Larkin, Sherry L.; Lee, Donna J.; Adams, Charles M.; Milon, J. Walter. The commercial fishery that primarily targets king mackerel, stone crab, snappers, groupers and spiny lobster in Monroe and Collier counties is one of the most important commercial fisheries in Florida. These species currently face problems of overfishing and/or over capitalization. A dual-based restricted profit function is used to estimate the economic and technical interactions that exist in this multi-species fishery, primarily using own-price and cross-price elasticities of supply. It is found that the production technology does not exhibit input-output separability and nonjointness-in-inputs over all species groups. This result suggests that these key species may be more efficiently managed as a group, rather than with the use of existing single... Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy. Ano: 2001 URL: http://purl.umn.edu/20485 Willingness-to-Pay for Red Tide Prevention, Mitigation, and Control Strategies: A Case Study of Florida Coastal Residents AgEcon Lucas, Kristen M.; Larkin, Sherry L.; Adams, Charles M.. Harmful algal blooms (HABS) are natural events with ecological and economic consequences worldwide. Different nations and regions have adapted to HABS in a variety of ways including distinct strategies designed to prevent, control and or mitigate the negative effects of HAB events. In Florida, Karenia brevis is the algae species that has accounted for nearly all of blooms. This algae species is unique in that the toxins produced during the bloom are a neurotoxin that can kill fish and marine mammals and become airborne and affect the respiratory system of humans. The fact that such blooms, referred to locally as “red tides” since a bloom can discolor the water a reddish-brown color, can affect humans is potentially disastrous to a state like Florida that... Tipo: Conference Paper or Presentation Palavras-chave: Harmful algal blooms; Florida; Dichotomous choice; Willingness to pay; Environmental Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/56498 Adoption and Abandonment of Precision Soil Sampling in Cotton Production AgEcon 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 Precision Farming by Cotton Producers in Six Southern States: Results from the 2001 Southern Precision Farming Survey AgEcon 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 LIMITED ACCESS AND VESSEL HETEROGENEITY IN ATLANTIC PELAGIC FISHERIES: EVALUATING DRAFT AMENDMENT 1 OF THE ATLANTIC SWORDFISH FMP AgEcon Lee, Donna J.; Larkin, Sherry L.; Adams, Charles M.. Overcapitalization in the U.S. Atlantic Swordfish fishery has led to a proposed limited access system. A bioeconomic programming model was developed to evaluate the propsed program under various assumptions regarding fleet heterogeneity and composition. Results indicate that regulations based on more realistic assumptions will lead to higher industry profits. Tipo: Conference Paper or Presentation Palavras-chave: Industrial Organization; Resource /Energy Economics and Policy. Ano: 1998 URL: http://purl.umn.edu/20922 PDA and Handheld GPS Adoption in Precision Cotton Production AgEcon 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 Economic Impacts of Red Tide Events on Restaurant Sales AgEcon Morgan, Kimberly L.; Larkin, Sherry L.. The economic impact of red tide events were examined for three Southwest Florida waterfront restaurants. Daily gross sales from January 1996 through September were analyzed using a multiple regression time series model to examine whether the presence of a red tide, as measured within three and six miles of the beach, reduced sales revenues. Preliminary results indicate that red tide blooms closer to shore had a significantly large negative influence on sales revenues across restaurant locations. Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness. Ano: 2006 URL: http://purl.umn.edu/35323 Buyback Programs for Capacity Reduction in the U.S. Atlantic Shark Fishery AgEcon Larkin, Sherry L.; Keithly, Walter R., Jr.; Adams, Charles M.; Kazmierczak, Richard F., Jr.. Declining fishery stocks, increasing fishing effort and adverse market conditions have produced difficult financial situations for fishermen worldwide. Several high-valued fisheries are considered to be overcapitalized. The purchase and permanent retirement of fishing vessels and/or permits under a buyback program is one approach for reducing fishing capacity. Evidence from previous programs, however, suggests that buybacks are not a panacea for solving overcapacity problems. Whether such programs can help rebuild stocks and improve the financial condition of fleets in any specific fishery depends on a multitude of factors. We consider the potential of a buyback program for the U.S. Atlantic shark fishery. Tipo: Journal Article Palavras-chave: Buyback programs; Fishing capacity; Fishing permits; Latent permits; Marine fisheries; Vessel decommissioning schemes; Q22; Q28. Ano: 2004 URL: http://purl.umn.edu/43423 Factors Influencing Farmer Adoption of Portable Computers for Site-Specific Management: A Case Study for Cotton Production AgEcon 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 Precision Agriculture Technology Adoption for Cotton Production AgEcon 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 A Double Hurdle Model of Preferences for a Proposed Capacity Reduction Program in the Atlantic Shark Fishery AgEcon Musengezi, Jessica D.; Rossi, Frederick J.; Larkin, Sherry L.. The Atlantic shark fishery is considered to be overcapitalized. One approach to capacity management is the purchase and permanent retirement of fishing vessels, fishing permits, or both under voluntary buyback programs. Representatives of the commercial shark fishery have proposed such an approach to manage the overcapacity in their fishery in the Gulf of Mexico and Atlantic regions. This program would allow owners to submit willingness-to-accept (WTA) bids for their permits and vessels. This study uses econometric modeling to explain the potential participation and bid amounts from a survey of permit owners. Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/35361 A Binary Logit Estimation of Factors Affecting Adoption of GPS Guidance Systems by Cotton Producers AgEcon Banerjee, Swagata (Ban); Martin, Steven W.; Roberts, Roland K.; Larkin, Sherry L.; Larson, James A.; Paxton, Kenneth W.; English, Burton C.; Marra, Michele C.; Reeves, Jeanne M.. Binary logit analysis was used to identify the factors influencing adoption of Global Positioning System (GPS) guidance systems by cotton farmers in 11 Mid-south and Southeastern states. Results indicate that adoption was more likely by those who had already adopted other precision-farming practices and had used computers for farm management. In addition, younger and more affluent farmers were more likely to adopt. Farmers with larger farms and with relatively high yields were also more likely to adopt. Education was not a significant factor in a farmer’s decision to adopt GPS guidance systems. Tipo: Journal Article Palavras-chave: Binary logit; Cotton; GPS guidance system; Marginal effect; Precision farming; Technology adoption; Agribusiness; Crop Production/Industries; Q2; Q16; Q19; Q20; Q24. Ano: 2008 URL: http://purl.umn.edu/45530 Improving Environmental Quality in South Florida through Silvopasture: An Economic Approach AgEcon Stainback, G. Andrew; Alavalapati, Janaki R.R.; Shrestha, Ram K.; Larkin, Sherry L.; Wong, Grace. A dynamic optimization model is used to compare the profitability of silvopasture with traditional cattle ranching in south Florida. Silvopasture can reduce phosphorus runoff from cattle ranching-a major environmental concern for Lake Okeechobee and the Everglades. Silvopasture can also sequester carbon, thereby offsetting global climate change. The effectiveness of phosphorus runoff taxes and carbon sequestration payments for inducting landowners to adopt silvopasture is investigated. We find that phosphorus taxes alone would not induce landowners to adopt silvopasture. However, payments to landowners to sequester carbon, alone or in conjunction with phosphorus runoff taxes, can make silvopasture financially competitive with traditional ranching. Tipo: Journal Article Palavras-chave: Carbon sequestration; Cattle ranching; Faustmann model; Global climate change; Phosphorus runoff; Silvopasture; Slash pine; Tax; Q57; Q23. Ano: 2004 URL: http://purl.umn.edu/43396 Adoption of Site-Specific Information and Variable-Rate Technologies in Cotton Precision Farming AgEcon Roberts, Roland K.; English, Burton C.; Larson, James A.; Cochran, Rebecca L.; Goodman, W. Robert; Larkin, Sherry L.; Marra, Michele C.; Martin, Steven W.; Shurley, W. Donald; Reeves, Jeanne M.. Probit analysis identified factors that influence the adoption of precision farming technologies by Southeastern cotton farmers. Younger, more educated farmer who operated larger farms and were optimistic about the future of precision farming were most likely to adopt site-specific information technology. The probability of adopting variable-rate input application technology was higher for younger farmers who operated larger farms, owned more of the land they farmed, were more informed about the costs and benefits of precision farming, and were optimistic about the future of precision farming. Computer use was not important, possibly because custom hiring shifts the burden of computer use to agribusiness firms. Tipo: Journal Article Palavras-chave: Cotton; Grid soil sampling; Precision farming; Probit; Sample selection; Site-specific information; Technology adoption; Variable-rate application; D21; Q12; Q16. Ano: 2004 URL: http://purl.umn.edu/42943 Portfolio Analysis for Optimal Seafood Product Diversification and Resource Management AgEcon Sylvia, Gilbert; Tuininga, Chris; Larkin, Sherry L.. Future harvests from commercial fish stocks are unlikely to increase substantially due to biological and regulatory constraints. Developing alternative sets of processed seafood products is one strategy for increasing welfare while managing the risks inherent in a variable and renewable natural resource. To quantify the risk-benefit tradeoffs of alternative strategies, a portfolio decision framework is embedded into a multi-period bioeconomic model. The model is used to generate an efficient portfolio frontier to estimate possible rent dissipation from status quo management. Frontiers are also generated for seafood processors and brokers. Implications for the different industry agents are discussed. Tipo: Journal Article Palavras-chave: Bioeconomic analysis; Dynamic optimization; Markowitz; Pacific whiting; Portfolio analysis; Resource management; Seafood processing; Resource /Energy Economics and Policy. Ano: 2003 URL: http://purl.umn.edu/31092 Precision Farming by Cotton Producers in Twelve Southern States: Results from the 2009 Southern Cotton Precision Farming Survey AgEcon 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 Estimating the Cost of Preserving Private Lands in Florida: An Hedonic Analysis AgEcon Larkin, Sherry L.; Alavalapati, Janaki R.R.; Shrestha, Ram K.. Florida’s open-space land-acquisition program is one of the most aggressive in the country, with $3.7 billion paid for 3.8 million acres since 1972. Using data from the Conservation and Recreational Lands (CARL) program, hedonic analyses found that acquiring private lands with valuable natural resources, habitat for rare species, and important historical sites for public preservation is more costly. Development potential and pressure also increased acquisition costs. The presence of additional endangered natural elements and needing to contract with additional landowners, however, were found to decrease the cost. Results provide a basis for landowners and land-acquisition agencies to negotiate. Tipo: Journal Article Palavras-chave: Development pressure; Florida Forever; Hedonic prices; Implicit land values; Land conversion; Preservation 2000; Land Economics/Use; Q24. Ano: 2005 URL: http://purl.umn.edu/43730 Registros recuperados: 27 Primeira ... 1 2 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco