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Registros recuperados: 25
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ALTERNATIVE AUCTION INSTITUTIONS FOR ELECTRIC POWER MARKETS 31
Bernard, John C.; Mount, Timothy D.; Schulze, William D..
Restructuring of electric power markets is proceeding across the United States and in many other nations around the world. The performance of these markets will influence everything from the prices faced by consumers to the reliability of the systems. The challenges of these changes present many important areas for research. For much of the northeastern United States, restructuring proposals include, at least for the short term, the formation of a single-sided auction mechanism for the wholesale market. This research uses experimental methods to analyze how these markets may function. In the experiments, the two basic uniform price auction rules are tested under three different market sizes. Early experimental results suggest the commonly proposed...
Tipo: Journal Article Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1998 URL: http://purl.umn.edu/31529
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An Experimental Investigation of Consumer Willingness to Pay for Non-GM Foods When an Organic Option Is Present 31
Bernard, John C.; Zhang, Chao; Gifford, Katie.
This research compared bids that consumers placed on non genetically modified (GM), organic, and conventional versions of food products in order to determine if the organic market well serves those seeking to avoid GM foods. Auction experiments using potato chips, tortilla chips, and milk chocolate were conducted with 79 subjects. Bids were modeled as a function of consumer demographics using a heteroskedastic tobit regression model. Results with the non-GM attribute nested into the organic characteristic showed that the latter's marginal effects were insignificant. This suggested the potential to further develop non-GM products for consumers not willing to pay extra for the remaining organic attributes.
Tipo: Journal Article Palavras-chave: Auction experiments; GM foods; Organic foods; Willingness to pay; Demand and Price Analysis.
Ano: 2006 URL: http://purl.umn.edu/10226
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An Experimental Investigation of Willingness to Pay for Non-GM and Organic Food Products 31
Gifford, Katie; Bernard, John C.; Toensmeyer, Ulrich C.; Bacon, J. Richard.
The appearance and rapid adoption of genetically modified (GM) foods and the strong growth in organic foods are two of the major trends that have influenced the food system over the past several years. The purpose of this research was to determine consumer willingness to pay (WTP) for non-GM and organic foods relative to conventional foods and to see if WTP differences between the three categories vary between fresh and processed food products. Experimental auctions with 133 subjects from three states (Delaware, Maryland, and Pennsylvania) were conducted. Tobit models were run with the bids as functions of demographic and knowledge and attitude variables. Results suggest an untapped market exists for non-GM products at a substantial premium over...
Tipo: Conference Paper or Presentation Palavras-chave: Consumer/Household Economics.
Ano: 2005 URL: http://purl.umn.edu/19385
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ASYMMETRIC PRICE RELATIONSHIPS IN THE U.S. BROILER INDUSTRY 31
Bernard, John C.; Willett, Lois Schertz.
This study presents a testing methodology to analyze potential price asymmetries among the farm, wholesale, and retail levels of the U.S. broiler industry. Lag length, direction of causality and power of the integrators in the industry have allowed the wholesale price to become the center, causal price in the market. Asymmetric price transmissions, however, are limited. While downward movements in the wholesale price are passed on more fully to growers than increases in the wholesale price, only consumers in the North Central region of the U.S. share a larger portion of wholesalers' price increases than price decreases.
Tipo: Journal Article Palavras-chave: Asymmetry; Broilers; Concentration; Granger causality; Price transmission; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/15125
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BOOK REVIEW: Sakiko Fukuda-Parr, ed., The Gene Revolution: GM Crops and Unequal Development. London: Earthscan, 2007, xxx + 248 pp., $42.50 paperback, ISBN 978-1-84407-409-9. 31
Bernard, John C..
Tipo: Journal Article Palavras-chave: Agribusiness.
Ano: 2007 URL: http://purl.umn.edu/62297
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Catching the "Local" Bug: A Look at State Agricultural Marketing Programs 31
Onken, Kathryn A.; Bernard, John C..
Tipo: Journal Article Palavras-chave: State Marketing Program; Local Foods; Consumer Awareness; State-Sponsored Logos; Mid-Atlantic Region; Marketing.
Ano: 2010 URL: http://purl.umn.edu/93825
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Comparing Parts with the Whole: Willingness to Pay for Pesticide-Free, Non-GM, and Organic Potatoes and Sweet Corn 31
Bernard, John C.; Bernard, Daria J..
Auction experiments were used to investigate demand relationships and willingness to pay (WTP) for four versions of potatoes and sweet corn—conventional, organic, and two parts of organic: no pesticides and non-genetically modified (non-GM). Elasticities showed strong and asymmetric substitute relationships between organic and its parts. Combined premiums of the parts were not significantly different than the whole organic premium, suggesting WTP for the attributes are not additive. A two-stage heteroskedastic tobit model found significant WTP for each part dependent on demographics and beliefs about conventional versions. Results suggest segments for parts of organic could be established alongside the whole.
Tipo: Journal Article Palavras-chave: Auction experiments; Organic; Pesticides; Potatoes; Sweet corn; Willingness to pay; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/97858
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Comparing Willingness to Pay for Organic, Natural, Locally Grown, and State Marketing Program Promoted Foods in the Mid-Atlantic Region 31
Onken, Kathryn A.; Bernard, John C.; Pesek, John D., Jr..
A choice experiment of Mid-Atlantic consumers was conducted to determine marginal willingness to pay for the attributes organic, natural, locally grown, and state marketing program promoted for strawberry preserves. The influence of purchasing venue on willingness to pay was also examined. Results indicated a price premium when purchased at a farmers market across all five states and versions. Organic was preferred to natural in only one state. Preference ordering between local and state program promoted varied. Consumers in Maryland and Pennsylvania clearly preferred local, while those in New Jersey seemed most likely to prefer the state program version.
Tipo: Journal Article Palavras-chave: Organic; Natural; Locally grown; State marketing program; Choice experiment; Consumer/Household Economics; Demand and Price Analysis; Marketing.
Ano: 2011 URL: http://purl.umn.edu/106065
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Confounded by the Field: Bidding in Food Auctions When Field Prices Are Increasing 31
Bernard, John C.; He, Na.
Auction experiments are commonly used to determine consumers’ willingness to pay for various food items. While their non-hypothetical nature is a positive, market substitutes create a probable confounding of bids by field prices. This study examines the influence of field prices on bids for four foods in two versions by conducting auctions before and after large price increases in 2007. Results show that bids were capped at given field prices and were significantly higher in sessions conducted after store prices increased. Percentage premiums, however, were not significantly different across sessions, suggesting that effects of field prices could be reduced. Overall, researchers must be conscious of how field prices affect bids.
Tipo: Journal Article Palavras-chave: Auction experiments; Field prices; Organic; Bidding; Consumer/Household Economics; Institutional and Behavioral Economics; Marketing.
Ano: 2010 URL: http://purl.umn.edu/90823
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Consistency of Willingness to Pay and Preferences in Auction Experiments 31
He, Na; Bernard, John C..
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural and Food Policy.
Ano: 2010 URL: http://purl.umn.edu/61749
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Consumer Attitudes Toward Genetic Modification and Other Possible Production Attributes for Chicken 31
Bernard, John C.; Pan, Xiqian; Sirolli, Ryan.
Today's consumers face foods whose production attributes they are often largely unfamiliar with and uncertain about. This study surveyed Delaware consumers about labeling, health risk concerns, and knowledge of five potential attributes for chicken: free-range, treated with antibiotics, irradiated, fed genetically modified (GM) feed, and GM chicken. Respondents were highly in favor of labeling all attributes, and perceived a high health risk from and had a low self-reported knowledge of many of the attributes. Gender, tobacco use, and label reading habits were significant factors in explaining the difference in responses. An analysis of survey comments further demonstrated the extent of consumer concerns.
Tipo: Journal Article Palavras-chave: Consumer/Household Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2005 URL: http://purl.umn.edu/27714
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Consumer Interest in Environmentally Beneficial Chicken Feeds: Comparing High Available Phosphorus Corn and Other Varieties 31
Pesek, John D., Jr.; Bernard, John C.; Gupta, Meeta.
One source of phosphorous pollution in areas of high chicken production is runoff from fields using fertilizer from these operations. A potential solution is to feed chicken high available phosphorus (HAP) corn, reducing phosphorus in manure. This study examined consumer purchase likelihood of chickens fed HAP, created traditionally or through genetic modification, and other genetically modified (GM) corn including Bt and Roundup-ready. Survey results from the Delmarva Peninsula found considerable interest in non-GM HAP corn, although GM HAP corn was not typically viewed as more acceptable than other GM varieties. Overall, the marketplace appears open to products geared toward environmental benefits.
Tipo: Journal Article Palavras-chave: Chicken; Conjoint analysis; Corn; Genetically modified; Heteroscedastic; Phosphorus pollution; Tobit; Environmental Economics and Policy; Q13; D12; C24.
Ano: 2011 URL: http://purl.umn.edu/117945
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Consumer Likelihood to Purchase Chickens with Novel Production Attributes 31
Bernard, John C.; Pesek, John D., Jr.; Pan, Xiqian.
Typical supermarket chickens are produced with novel or controversial attributes. This continues despite contrasting growth in consumer interest in organic and natural foods. This study surveyed Delaware consumers’ likelihood to purchase chicken given different attributes: free range, given antibiotics, irradiated, fed genetically modified (GM) fee, GM chicken, and price. Examining conjoint analysis data with a heteroskedastic two-limit tobit model, GM chicken and other novel attributes were found to lower purchase likelihood significantly. Understanding these results should help the industry meet consumer preferences while aiding its continued expansion to benefit workers and growers across the South.
Tipo: Journal Article Palavras-chave: Antibiotics; Chicken; Conjoint analysis; Genetically modified; Heteroskedastic; Irradiated; Tobit; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Q13; D12; C24.
Ano: 2007 URL: http://purl.umn.edu/6058
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Differences in WTP and Consumer Demand for Organic and Non-GM Fresh and Processed Foods 31
He, Na; Bernard, John C..
Auction experiments were used to examine demand and premium differences between organic, non-GM (genetically modified), and conventional versions for two pairs of fresh and processed foods. Results showed processed foods had greater substitutability among the versions than fresh products. Conventional versions were the least price sensitive, while non-GM versions were the most sensitive. Significant premium differences were found between fresh and processed foods for sweet corn and tortilla chips, but not for potatoes and potato chips. Results from random effects models mirrored these findings. In general, the extent of premium differences between fresh and processed versions appears dependent on the food product.
Tipo: Journal Article Palavras-chave: Auction experiments; Willingness to pay; Organic; Non-GM; Fresh; Processed food; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Marketing.
Ano: 2011 URL: http://purl.umn.edu/117773
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EXPERIMENTAL INVESTIGATION OF INTERACTIONS IN WILLINGNESS TO PAY FOR CERTIFIED ORGANIC AND NON-GENETICALLY MODIFIED FOODS 31
Bernard, John C.; Toensmeyer, Ulrich C..
Tipo: Journal Article Palavras-chave: Consumer/Household Economics.
Ano: 2004 URL: http://purl.umn.edu/27139
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Factor and Cluster Analysis of Willingness to Pay for Organic and Non-GM Food 31
Gifford, Katie; Bernard, John C..
A large segment of consumers appear to value niche products including organic, “non-GM,” “pesticide-free,” and “no antibiotics used” more in fresh products than in processed. About ten percent of the respondents were especially interested in non-GM products. These consumers feel that GM labeling is important, but felt that other types of food labels were relatively unimportant. The non-GM audience defied easy demographic profiling. Data were collected by both surveys and experimental auctions, with factor analysis and cluster analysis used to interpret the data. The survey and experimental auction data yielded different willingness-to-pay values but showed similar patterns of consumer preferences.
Tipo: Journal Article Palavras-chave: Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/55973
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MODELING NITRATE CONCENTRATION IN GROUND WATER USING REGRESSION AND NEURAL NETWORKS 31
Ramasamy, Nacha; Krishnan, Palaniappa; Bernard, John C.; Ritter, William F..
Nitrate concentration in ground water is a major problem in specific agricultural areas. Using regression and neural networks, this study models nitrate concentration in ground water as a function of iron concentration in ground water, season and distance of the well from a poultry house. Results from both techniques are comparable and show that the distance of the well from a poultry house has a significant effect on nitrate concentration in groundwater.
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/15825
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MODELING NITROGEN LOADING RATE TO DELAWARE LAKES USING REGRESSION AND NEURAL NETWORKS 31
Sudhakar, Prachi; Krishnan, Palaniappa; Bernard, John C.; Ritter, William F..
The objective of this research was to predict the nitrogen-loading rate to Delaware lakes and streams using regression analysis and neural networks. Both models relate nitrogen-loading rate to cropland, soil type and presence of broiler production. Dummy variables were used to represent soil type and the presence of broiler production at a watershed. Data collected by Ritter & Harris (1984) was used in this research. To build the regression model Statistical Analysis System (SAS) was used. NeuroShell Easy Predictor, neural network software was used to develop the neural network model. Model adequacy was established by statistical techniques. A comparison of the regression and neural network models showed that both perform equally well. Cropland was...
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/15824
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PACKAGING OF ORGANIC AND CONVENTIONAL PRODUCTS - A COMPARISON 31
Gifford, Katie; Bernard, John C..
Tipo: Journal Article Palavras-chave: Agribusiness.
Ano: 2004 URL: http://purl.umn.edu/27140
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Performance Results and Characteristics of Adopters of Genetically Engineered Soybeans in Delaware 31
Bernard, John C.; Pesek, John D., Jr.; Fan, Chunbo.
Genetically engineered (GE) soybeans first became available to farmers in 1996. Despite the common questions regarding any new crop technology, the new seeds were rapidly adopted. This study examines the characteristics of adopters, as well as yield and weed control cost changes, using survey results from Delaware farmers at the start of the 2000 season. Duration analysis reveals that earlier-adopting farmers had larger farms and tended to use computers for financial management, while regression analysis shows significantly lower weed control costs and, to a lesser extent, higher yields for GE soybeans.
Tipo: Journal Article Palavras-chave: Crop Production/Industries.
Ano: 2004 URL: http://purl.umn.edu/31258
Registros recuperados: 25
Primeira ... 12 ... Última
 

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