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Registros recuperados: 58 | |
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Mishra, Ashok K.; Park, Timothy A.. |
The Internet may reduce constraints on a farmers ability to receive and manage information, regardless of where the farm is located or when the information is used. Using a count data estimation procedure, this study attempts to examine the key farm, operator, regional, and household characteristics that influence the number of Internet applications used by farm households. Findings indicate that educational level of the farm operator, farm size, farm diversification, off-farm income, off-farm investments, and regional location of the farm have a significant impact on the number of Internet applications used. |
Tipo: Journal Article |
Palavras-chave: Computers; Count data method; Education; Farm households; Internet applications; Farm Management. |
Ano: 2005 |
URL: http://purl.umn.edu/10234 |
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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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Park, Timothy A.. |
Organic farmers face heightened pressure in developing a portfolio of different marketing channels and in bargaining competitively with increasingly sophisticated marketing participants in the supply chain for organic products. This research assists producers by identifying specific farm and demographic factors that enhance earnings given the choice of marketing outlet. The two significant selectivity coefficients confirm that organic earnings when marketing through a single outlet are biased upward since farmers who are better suited to market through multiple outlets have already moved away from this marketing strategy. An accurate evaluation of the projected earnings from any marketing strategy must account for selectivity effects. |
Tipo: Journal Article |
Palavras-chave: Marketing outlets; Multinomial logit; Organic production; Selectivity correction; Marketing. |
Ano: 2009 |
URL: http://purl.umn.edu/57626 |
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Lohr, Luanne; Park, Timothy A.. |
A stochastic frontier model is used to explain the performance evaluation of U.S. university extension providers by organic producers. The model makes explicit the nonmanagerial factors that influence both performance ratings and performance efficiency, defined as achieving a rating as close to the "best" rating as possible. Results indicate that extension agents are performing at relatively high mean efficiency of 0.92, but that the average rating is relatively low at 2.66 on a four-point scale. Several sources of potential bias in ratings are identified as a way for managers to more accurately conduct individual performance assessments. Programmatic changes to emphasize more collaborative research and training are suggested by the positive effects on... |
Tipo: Working or Discussion Paper |
Palavras-chave: Teaching/Communication/Extension/Profession. |
Ano: 2004 |
URL: http://purl.umn.edu/16721 |
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Sauer, Johannes; Graversen, Jesper T.; Park, Timothy A.. |
This paper attempts to quantitatively measure the change in the productivity of Danish organic farming in recent years by using panel data on 56 organic farms mainly engaged in milk production for the period 2002 to 2004. Based on a translog production frontier framework the technical and scale efficiency on farm level is analyzed by considering also curvature consistency. The total change in productivity for the reference period is measured by using the Malmquist total factor productivity index approach based on a time trends as well as a general index model specification. Input specific bias in technical change as well as a general index model specification. Input specific bias in technical change as well elasticities of input substitution are... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
Ano: 2006 |
URL: http://purl.umn.edu/21481 |
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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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Park, Timothy A.; Loomis, John B.. |
This paper empirically tested the three conditions identified by McConnell for equivalence of the linear utility difference model and the valuation function approach to dichotomous choice contingent valuation. Using a contingent valuation survey for deer hunting in California, two of the three conditions were violated. Even though the models are not simple linear transforms of each other for this survey, estimates of mean willingness to pay and their associated 95% confidence intervals around the mean were quite similar for the valuation methods. |
Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
Ano: 1992 |
URL: http://purl.umn.edu/29009 |
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Park, Timothy A.; Florkowski, Wojciech J.. |
A generalized Heckman model of purchase decisions incorporating perceived consumer quality attributes, ease of purchase, and familiarity with marketing outlets as factors influencing pecan purchases is estimated. Marketing efforts that encourage consumers to expand expenditures on nut products increase both the probability of pecan purchases and the amount purchased. Consumers who use all types of nuts in a wider variety of foods tend to purchase pecans more frequently. A diverse set of marketing outlets provides consumers with convenient sources of purchasing pecans and has a significant influence on the probability of pecan purchases but not the amount of pecans purchased. |
Tipo: Journal Article |
Palavras-chave: Generalized Heckman model; Pecan purchases; Tobit; Demand and Price Analysis. |
Ano: 1999 |
URL: http://purl.umn.edu/15130 |
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Lohr, Luanne; Park, Timothy A.. |
We study the demand by organic farmers for technical advice using a quantile regression for the demand of organic farmers for consultations with private information providers. There is substantial heterogeneity in the impact of critical explanatory variables on consultations of organic farmer. Larger farm size has a positive effect on contacts, but the effect is absent for the highest number of consultations. Internet use has a positive marginal effect on visits to private information providers across each quantile, suggesting that expanded efforts to deliver programs through web-based resources are a useful investment for information providers. |
Tipo: Article |
Palavras-chave: Organic farming; Technical assistance; Quantile regression model; Count data; Internet access; Marketing; C25; Q12; Q13; Q16. |
Ano: 2012 |
URL: http://purl.umn.edu/123784 |
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Park, Timothy A.. |
New store formats including competition from supercenters (driven by Wal-Mart), warehouse clubs, and mass merchandisers have emerged as a major threat to traditional grocery chains. A key issue in the food retailing sector is to understand how the earnings of employees respond to the evolution of new retail store formats and store organizational characteristics. The elasticity of complementarity for food retailers measures how changes in store size affect use of full-time and part-time employees. The evidence for constant returns to scale suggests that the Hicks elasticity of complementarity is the appropriate measure to assess input substitutability for food retailers. As store size increases the marginal value of labor rises and firms hire more... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Elasticity of complementarity; Employee compensation; Food retailing; Inverse price elasticities; Agribusiness; Labor and Human Capital. |
Ano: 2007 |
URL: http://purl.umn.edu/9939 |
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Registros recuperados: 58 | |
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