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| Registros recuperados: 44 | |
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| Lohr, Luanne; Park, Timothy A.. |
| Responses from a national survey of U.S. organic farmers indicated dissatisfaction with the extension service. An ordered probit model was used to identify the factors influencing effectiveness ratings of extension advisors by farmers. Study findings show that part-time, higher income organic farmers who used a variety of highly rated private-sector information sources rated extension providers as more effective. Farmers in the Northeast and West regions rated extension usefulness more highly than in other regions. Not accounting for these demographic components in effectiveness ratings may result in under- or overestimation of results of organic-targeted extension programs. Extension agents can improve their usefulness to organic farmers by complementing... |
| Tipo: Journal Article |
Palavras-chave: Extension service; Ordered probit model; Organic farming; Teaching/Communication/Extension/Profession. |
| Ano: 2003 |
URL: http://purl.umn.edu/31055 |
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| Lohr, Luanne; Hanson, Steven D.. |
| Number of suppliers, approximation of equal-shares market condition and market share held by in-state sources were calculated to determine diversity of sources for 10 fresh fruits and vegetables in eight U.S. wholesale markets. Specificity of growing conditions is associated with few supply sources, unequal market shares and limited purchases from in-state suppliers. For crops with few sources, lower perishability and greater transportability are correlated with greater balance in market shares. For crops with many supply sources, greater perishability and greater transportability are consistent with large market share from imports. Diversity across all commodities can increase market share for local producers. |
| Tipo: Journal Article |
Palavras-chave: Concentration index; Fruits and vegetables; Source diversity; Marketing. |
| Ano: 1995 |
URL: http://purl.umn.edu/15274 |
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| Park, Timothy A.; Lohr, Luanne. |
| Organic farmers make system-level crop protection decisions that combine complementary insect, disease, nematode, and weed management strategies. Data from a national survey of U.S. organic farmers were used in a multivariate count data model to identify the farm and regional factors influencing the intensity of adoption across the linked pest management categories. The results showed that weed management is of greatest concern to organic farmers. More intensive information-seeking and on-farm experimentation, higher educational attainment, and intensity of commitment to organic farming were positively related to the number of weed control strategies adopted. Predictions of adoption intensity based on this model and customized to farm and region... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Farm Management. |
| Ano: 2002 |
URL: http://purl.umn.edu/16655 |
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| Lohr, Luanne; Park, Timothy A.. |
| The impact of supply relationships and certification programs on the organic lettuce market is examined using an integrated partial adjustment and asymmetric supply response model. Costs associated with organic certification, production, and marketing have not restricted producers' abilities to respond to price signals. Organic growers allocate output between certified and noncertified markets in response to changing price premiums. Estimates of short-run supply elasticities indicate that organic lettuce growers are more responsive to price changes than producers of nonorganic lettuce. Long-run elasticity has increased since 1988, a change that coincides with the market entry of larger producers. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries; Industrial Organization. |
| Ano: 1992 |
URL: http://purl.umn.edu/30948 |
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| Martinez, Stephen W.; Hand, Michael S.; Da Pra, Michelle; Pollack, Susan L.; Ralston, Katherine L.; Smith, Travis A.; Vogel, Stephen J.; Clark, Shellye; Lohr, Luanne; Low, Sarah A.; Newman, Constance. |
| This comprehensive overview of local food systems explores alternative definitions of local food, estimates market size and reach, describes the characteristics of local consumers and producers, and examines early indications of the economic and health impacts of local food systems. There is no consensus on a definition of “local” or “local food systems” in terms of the geographic distance between production and consumption. But defining “local” based on marketing arrangements, such as farmers selling directly to consumers at regional farmers’ markets or to schools, is well recognized. Statistics suggest that local food markets account for a small, but growing, share of U.S. agricultural production. For smaller farms, direct marketing to consumers accounts... |
| Tipo: Report |
Palavras-chave: Local food systems; Farmers’ markets; Direct-to-consumer marketing; Direct-to-retail/ foodservice marketing; Community supported agriculture; Farm to school programs; Farmers’ Market Promotion Program; Food miles; Community/Rural/Urban Development. |
| Ano: 2010 |
URL: http://purl.umn.edu/96635 |
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| Lohr, Luanne; Park, Timothy A.. |
| A stochastic distance function frontier was estimated using data from a national survey of organic farmers to evaluate the effect of farm-specific attributes on efficiency. Farm-specific and regional variables that shift efficiency were incorporated into the multioutput distance function, including organic farming experience, use of soil-improving inputs, and farmer involvement in research. Participation in research projects reduces the level of on-farm technical inefficiency with mean technical efficiency of participating farmers 25 percent higher than nonparticipating farmers. The results suggest that differences in productivity across organic farmers are closely linked to input use and observable management decisions. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Productivity Analysis. |
| Ano: 2004 |
URL: http://purl.umn.edu/36244 |
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| Lohr, Luanne; Park, Timothy A.. |
| Responses from a national survey of U.S. organic farmers indicated substantial dissatisfaction with the extension service. An ordered probit model was used to identify the factors influencing effectiveness ratings of extension advisors by farmers. This study showed that part time, higher income organic farmers who used a variety of highly rated private sector information sources rated extension providers as more effective. Farmers in the Northeast and West regions rated extension usefulness more highly than in other regions. Not accounting for these demographic components in effectiveness ratings may result in under- or overestimation of results of organic-targeted extension programs. Extension agents can improve their credibility with organic farmers... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 2002 |
URL: http://purl.umn.edu/16666 |
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| Lohr, Luanne; Salomonsson, Lennart. |
| Environmental and social justifications for organic conversion subsidies are as pervasive in the United States as in Europe, but national policy does not explicitly support organic agriculture. Using Sweden's experience, we analyze factors that affect whether a subsidy is required to motivate organic conversion. We use a utility difference model to compare farmers who converted before and after the subsidy. Significant factors in conversion without subsidies are greater livestock diversity and more sales outlets. Farmers requiring subsidies manage larger farms, are more concerned with organic inspection quality and adequacy of technical advice, and reside in areas with more organic farms. Results suggest that a subsidy induces mainly those already... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Organic agriculture; Utility difference model; Public policy; Agricultural and Food Policy; Production Economics. |
| Ano: 1998 |
URL: http://purl.umn.edu/16640 |
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| Lohr, Luanne; Park, Timothy A.. |
| Although organic farm activities seem to demand year-round employees, seasonal workers dominate the organic labor market. We use the elasticity of complementarity to assess input substitutability and predict adjustments. Farm size and farm workers are complementary inputs. Incentives that encourage farmers to expand employment of year-round and seasonal workers raise the marginal product and rates of return to organic acreage in relative wage payments. A commitment to local sales reduces organic farm incomes. A shift to local sales leads to decreased use of seasonal workers but at higher wages, with smaller adjustments in the wages of year-round workers. |
| Tipo: Report |
Palavras-chave: Elasticity of complementarity; Labor management; Organic farming; Returns to scale; Seasonal workers; Labor and Human Capital. |
| Ano: 2009 |
URL: http://purl.umn.edu/54549 |
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| Park, Timothy A.; Lohr, Luanne. |
| Organic farmers make system-level crop protection decisions that combine complementary insect, disease, nematode, and weed management strategies. Data from a national survey of U.S. organic farmers were used in a multivariate count data model to identify the farm and regional factors influencing adoption across the linked pest management categories. The results showed that weed management requires the greatest management effort by organic farmers. More intensive information-seeking and on-farm experimentation, higher educational attainment, and intensity of commitment to organic farming were positively related to the number of weed control strategies adopted. Predictions of adoption based on this model and customized to farm and region specifications... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/22070 |
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| Paudel, Krishna P.; Lohr, Luanne. |
| Residue management system (RMS), comprised of no till cultivation, a winter cover crop, and poultry litter, could be an alternative to existing management system in cotton production in the Georgian Piedmont. We compare the productivity and profitability of RMS with the current system over time, focusing on the role of organic matter. Using dynamic bioeconomic modelling technique, we show that the net return and land value difference between these two systems increase as the terminal period increases. We conclude that if financial and capital markets based on organic matter work efficiently, farmers will choose RMS in cotton production. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Residue management; Organic matter; Productivity; Crop Production/Industries. |
| Ano: 1998 |
URL: http://purl.umn.edu/16677 |
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| Registros recuperados: 44 | |
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