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Registros recuperados: 45
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Adoption of Integrated Pest Management Technologies: A Case Study of Potato Farmers in Carchi, Ecuador AgEcon
Barrera, Victor; Norton, George W.; Alwang, Jeffrey Roger; Mauceri, Maria.
Agricultural development is essential for improved well-being in rural Ecuador. As much as 40% of the population relies on agriculture as its primary source of income and agricultural exports account for a significant proportion of foreign exchange revenue. In the highlands, potatoes are a major staple, and more than 90,000 producers grow them on about 60,000 hectares of land. Potato production is associated with heavy use of chemical inputs--pesticides and fertilizers--to manage pests and optimize profits. Concerns have emerged about the sustainability of Ecuador's potato crop as rising input costs have created a cost squeeze and public health officials are increasingly concerned about health consequences of pesticide over use. Producers need...
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management.
Ano: 2005 URL: http://purl.umn.edu/19400
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AGRICULTURAL COOPERATION AND PRODUCE MARKETING IN SOUTHWEST VIRGINIA AgEcon
Trupo, Paul; Colavito, Luke A.; Reaves, Dixie Watts; Coale, Charles W., Jr.; Norton, George W..
Growers and community leaders have expressed interest in establishing a horticultural shipping-point market in Southwest Virginia. This paper reports on a study that assessed whether horticultural production would be profitable in the region and, if so, the physical and organizational requirements for a successful shipping-point market. It appears that tomatoes, peppers, and pumpkins can be produced and marketed profitably to large-volume wholesale buyers if growers meet the exacting requirements of the retailers. A cooperative association is the organizational structure with the greatest chance of success. At the conclusion of this study, a shipping-point market in the recommended form was established in Southwest Virginia.
Tipo: Journal Article Palavras-chave: Agribusiness; Marketing.
Ano: 1998 URL: http://purl.umn.edu/26874
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AGRICULTURAL DEVELOPMENT PLANNING FOR AN AMERICAN INDIAN RESERVATION: THE CASE OF THE SISSETON-WAHPETON SIOUX TRIBE AgEcon
Norton, George W.; Easter, K. William.
Tipo: Working or Discussion Paper Palavras-chave: Agricultural and Food Policy.
Ano: 1979 URL: http://purl.umn.edu/13719
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ARE EXTENSION EDUCATION PROGRAMS EFFECTIVE? IMPACTS OF A PROGRAM TO ASSIST LIMITED RESOURCE AND SOCIALLY DISADVANTAGED FARMERS AgEcon
Akobundu, Eberechukwu; Essel, Albert E.; Norton, George W.; Tegene, Abebayehu.
Tipo: Working or Discussion Paper Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 2002 URL: http://purl.umn.edu/14834
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Arroz Transgénico en Uruguay: un modelo de simulación para estimar los beneficios económicos potenciales. AgEcon
Hareau, Guy Gaston; Mills, Bradford F.; Norton, George W..
economic surplus, imperfect markets, adoption rate, GMO, monopoly power.
Tipo: Book Palavras-chave: En pequeños países en desarrollo como Uruguay; Los beneficios económicos potenciales que se obtendrían por la adopción de nuevas tecnologías agrícolas basadas en biotecnología están limitados por una base productiva reducida. En este trabajo se evalúa ex - ante el impacto económico de una variedad de arroz transgénico resistente a herbicidas donde el poder de mercado de la multinacional propietaria de la variedad afecta las tasas de adopción a través del margen monopólico en el precio de la semilla. Se emplean métodos de simulación estocástica para estudiar la variación de los resultados a cambios en los parámetros tecnológicos y en las tasas de adopción. La media del excedente económico de los productores es de US$1; 82 millones; Mientras que la ganancia monopólica es de US$0; 55 millones. Estos beneficios económicos relativamente escasos sugieren que; Sin estrategias de política pública que incrementen los beneficios potenciales y reduzcan los costos de investigación; Las multinacionales no invertirían recursos significativos en el desarrollo de una variedad transgénica adaptada a las condiciones locales. Las alianzas con instituciones nacionales y el acceso a mercados regionales ampliados también contribuyen a incrementar los incentivos privados en I&D.; Agricultural and Food Policy; Research and Development/Tech Change/Emerging Technologies; C14; E17; Q16; Q18; Q55.
Ano: 2005 URL: http://purl.umn.edu/121683
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CASE STUDY -- REDUCING PESTICIDES RESIDUES ON HORTUCULTURAL CROPS AgEcon
Norton, George W.; Sanchez, Guillermo; Clarke-Harris, Dionne; Traore, Halimatou Kone.
Tipo: Report Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2003 URL: http://purl.umn.edu/16561
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CONSTRAINTS TO INCREASING LIVESTOCK PRODUCTION IN LESS DEVELOPED COUNTRIES: A LITERATURE REVIEW AgEcon
Norton, George W..
Tipo: Working or Discussion Paper Palavras-chave: Livestock Production/Industries.
Ano: 1976 URL: http://purl.umn.edu/14043
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DOES EXTENSION WORK? IMPACTS OF A PROGRAM TO ASSIST LIMITED-RESOURCE FARMERS IN VIRGINIA AgEcon
Akobundu, Eberechukwu; Alwang, Jeffrey Roger; Essel, Albert E.; Norton, George W.; Tegene, Abebayehu.
Qualitative evidence suggests that 1890 institutions play a significant role in delivering extension information to limited-resource, particularly minority, farmers. However, there is little empirical evidence of economic impacts of public investments in 1890 extension programs. This paper quantifies the economic impacts of the 2501 extension program for limited resource farmers in Virginia.
Tipo: Conference Paper or Presentation Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 2003 URL: http://purl.umn.edu/22091
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ECONOMIC ANALYSIS OF ENVIRONMENTAL BENEFITS OF INTEGRATED PEST MANAGEMENT AgEcon
Mullen, Jeffrey D.; Norton, George W.; Reaves, Dixie Watts.
Public support for integrated pest management (IPM) is derived in part from concerns over food safety and the environment, yet few studies have assessed the economic value of health and environmental benefits of IPM. An approach is suggested for such an assessment and applied to the Virginia peanut IPM program. Effects of IPM on environmental risks posed by pesticides are assessed and society's willingness to pay to reduce those risks is estimated. The annual environmental benefits of the peanut IPM program are estimated at $844,000. The estimates of pesticide risks and willingness to pay can be applied elsewhere in economic assessments of IPM.
Tipo: Journal Article Palavras-chave: Integrated pest management; Willingness to pay; Environmental benefits; Crop Production/Industries; Environmental Economics and Policy.
Ano: 1997 URL: http://purl.umn.edu/15057
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Economic impact analysis of marker-assisted breeding for resistance to pests and post harvest deterioration in cassava AgEcon
Rudi, Nderim; Norton, George W.; Alwang, Jeffrey Roger; Asumugha, Godwin N..
Marker-assisted breeding could have a major impact in relieving productivity constraints that cannot as easily or rapidly be relieved by conventional breeding alone. This paper estimates the benefits of using marker-assisted breeding, as compared to conventional breeding alone, in developing cassava varieties resistant to cassava mosaic disease, green mite, whitefly and post-harvest physiological deterioration in Nigeria, Ghana and Uganda. Marker-assisted breeding is estimated to save at least four years in the breeding cycle for varieties resistant to the pests and to result in incremental net benefits over 25 years in the range of $34 to $800 million depending on the country, the particular constraint and various assumptions. Benefits may reach as high...
Tipo: Journal Article Palavras-chave: Marker-assisted breeding; Impact assessment; Cassava; Green mite; Whitefly; Cassava mosaic disease; Post-harvest physiological deterioration; Crop Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/93862
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Economic Impact Analysis of Marker-Assisted Breeding in Rice AgEcon
Alpuerto, Vida; Norton, George W.; Alwang, Jeffrey Roger.
The benefits of developing and releasing salinity-tolerant and phosphorous-deficiency-tolerant rice in Bangladesh, India, Indonesia and the Philippines were estimated for marker-assisted breeding as compared to conventional breeding using economic surplus analysis. Marker-assisted breeding is estimated to save at least 2 to 3 years in the breeding cycle and result in incremental benefits over 25 years in the range of $300 to $800 million depending on the country, stress, and time lags. Salinity and phosphorous deficient soils are difficult problems to solve through conventional breeding because of “genetic load” or undesirable traits that accompany desirable ones during backcrossing. MAB, enabled by advances in genomics and molecular mapping is more...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/6421
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ECONOMIC IMPACTS OF THE COLLEGE OF VETERINARY MEDICINE AgEcon
Liu, Binzhang; Kshirsagar, Shukla; Johnson, Thomas G.; Thatcher, Craig D.; Norton, George W..
Colleges of veterinary medicine are often asked to provide evidence of the economic impacts of their activities. This report presents methods for evaluating a veterinary college and applies them to the Virginia-Maryland Regional College of Veterinary Medicine. Short-run impacts on income and employment are assessed as well as the long-run benefits of the research, extension, teaching, and clinical services of the college.
Tipo: Working or Discussion Paper Palavras-chave: Public Economics.
Ano: 1999 URL: http://purl.umn.edu/14855
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Economic Significance of Specific Export Promotion on Poverty Reduction and Inter- Industry Growth of Ethiopia AgEcon
Chala, Zelalem T.; Norton, George W.; Grant, Jason H..
Micro simulated general equilibrium approach was used to analyze the economic significance of the current export promotion policy of Ethiopia. Simulation results, in general, indicated little achievements of economic growth and poverty reduction under selective export promotion. In this policy approach, only rural households were able to acquire higher income and lower poverty incidence. These achievements however were transmitted to small and big urban households when export promotion was assumed to be implemented across the board of all agricultural activities. Significant economic and inter-industrial growths were attained when the coffee industry was given equal policy treatments like other export agriculture
Tipo: Conference Paper or Presentation Palavras-chave: Selective export promotion policy; Computable general equilibrium; Poverty reduction; Foreign direct investment; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/61739
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Effectiveness of Integrated Pest Management Dissemination Techniques: A Case Study of Potato Farmers in Carchi, Ecuador AgEcon
Mauceri, Maria; Alwang, Jeffrey Roger; Norton, George W.; Barrera, Victor.
Potato farmers in Ecuador rely on chemical inputs to manage pests and optimize yields. Integrated pest management techniques lower production costs, reduce pesticide exposure, and improve long-term agricultural sustainability. Public extension does not, however, exist in Ecuador and cost-effective means of communicating complex messages to producers are needed. We analyze cost-effectiveness of alternative dissemination methods, including farmer field schools (FFS), field days, pamphlets, and word-of-mouth transmission. Field days and pamphlets have strong impacts on adoption, especially considering their low costs. FFS are effective, but expensive. Evidence also indicates significant diffusion from FFS to non-FFS farmers, indicating high...
Tipo: Journal Article Palavras-chave: Ecuador; Farmer field schools; Integrated pest management; Technology adoption; Technology dissemination; Q01; Q16.
Ano: 2007 URL: http://purl.umn.edu/37091
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ESTIMATES OF POTENTIAL RETURNS FROM ADDED RESEARCH BUDGET FOR THE LAND GRANT UNIVERSITIES AgEcon
Easter, K. William; Norton, George W..
This paper briefly reviews approaches that have been used to assess returns to U.S. agricultural research and explains the usefulness of benefit cost analysis in such evaluations. Benefit-cost analysis is applied to the Land Grant Universities federal budget requests for additional funds for corn and soybean research in the North Central region. Finally, the problems involved in applying a similar analysis to livestock and rural development research are discussed
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1976 URL: http://purl.umn.edu/13464
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ESTIMATING RETURNS TO AGRICULTURAL RESEARCH, EXTENSION, AND TEACHING AT THE STATE LEVEL AgEcon
Norton, George W.; Coffey, Joseph D.; Frye, E. Berrier.
The majority of decisions concerning investment and allocation of public funds for agricultural research, extension, and teaching (RET) are made at the state-level, while most of the quantitative RET evaluations are made on a national basis. This paper illustrates an approach for conducting a disaggregated state-level evaluation of agricultural research, extension, and teaching. Ridge regression is employed to handle multicollinearity problems.
Tipo: Journal Article Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1984 URL: http://purl.umn.edu/29605
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ESTIMATING THE EFFECTS OF PESTICIDE USE ON BURLEY AND FLUE-CURED TOBACCO AgEcon
Norton, George W.; Bernat, G. Andrew, Jr..
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 1983 URL: http://purl.umn.edu/30156
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EVALUATING PRIVATELY FUNDED PUBLIC RESEARCH: AN EXAMPLE WITH POULTRY AND EGGS AgEcon
Martinez, Stephen W.; Norton, George W..
A procedure is described for evaluating poultry and egg research projects. A peer review questionnaire and benefit-cost analysis are utilized incorporating elasticities from an econometric model for poultry and eggs. Production, cost, and price changes are used to calculate changes in producer surplus and net economic surplus for a set of privately funded publicly conducted research projects.
Tipo: Journal Article Palavras-chave: Public Economics.
Ano: 1986 URL: http://purl.umn.edu/29453
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Evaluating Returns to Social Science Research: Issues and Possible Methods AgEcon
Norton, George W.; Schuh, G. Edward.
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1981 URL: http://purl.umn.edu/49076
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Evaluating Social Science Research in Agriculture AgEcon
Norton, George W..
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1987 URL: http://purl.umn.edu/50028
Registros recuperados: 45
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