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	Provedor de dados AgEcon (50) Autor Nganje, William E. (50) Wilson, William W. (11) Johnson, D. Demcey (10) Kaitibie, Simeon (8) Miljkovic, Dragan (7) Wachenheim, Cheryl J. (5) Koo, Won W. (4) Onyango, Benjamin M. (4) Park, Joon J. (4) Taylor, Richard D. (4) Acharya, Ram N. (3) Condry, Sarah C. (3) Cuite, Cara L. (3) Dahl, Bruce L. (3) Hallman, William K. (3) Leistritz, F. Larry (3) Richards, Timothy J. (3) Tiapo, Napoleon M. (3) Bangsund, Dean A. (2) Brorsen, B. Wade (2) Mais... Palavra-chave Food Consumption/Nutrition/Food Safety (22) Crop Production/Industries (12) Agribusiness (9) Food safety (7) Marketing (7) Barley (4) Consumer/Household Economics (4) Risk and Uncertainty (4) Agricultural and Food Policy (3) Efficiency gains (3) Fusarium Head Blight (3) HACCP (3) I18 (3) Production Economics (3) Risk perception (3) Tradeoffs (3) Wheat (3) Crop losses (2) D12 (2) Discrete choice models (2) Mais... Tipo do documento Working or Discussion Paper (18) Conference Paper or Presentation (15) Journal Article (11) Report (5) Article (1) Ano 2011 (3) 2010 (1) 2009 (3) 2008 (6) 2007 (5) 2006 (1) 2005 (3) 2004 (4) 2003 (7) 2002 (2) 2001 (7) 2000 (4) 1999 (4) Mais... País United States (50) Idioma Inglês (50)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 50 Primeira ... 1 2 3 ... Última Food Recalls and Food Safety Perceptions: The September 2006 Spinach Recall Case AgEcon Onyango, Benjamin M.; Miljkovic, Dragan; Hallman, William K.; Nganje, William E.; Condry, Sarah C.; Cuite, Cara L.. This paper examines public perceptions on food safety particularly relating to spinach, which was subject of countrywide recall in 2006. Results indicate that food safety perceptions may be driven by public trust/confidence in institutions whose activities may be directly or indirectly related to food safety. The results further suggest that food safety perceptions may also be related to the type of the product; for example, the public perceives frozen spinach differently from bagged fresh spinach. Additionally, the results show that low levels of objective knowledge about food pathogens and the resulting illnesses have implications on overall food safety. Results further indicate that females and Caucasians perceived the four types of spinach as safe for... Tipo: Conference Paper or Presentation Palavras-chave: Food Consumption/Nutrition/Food Safety. Ano: 2007 URL: http://purl.umn.edu/9679 Consumer Willingness to Pay for Breads Marketed as "Low-Carbohydrate" AgEcon Wachenheim, Cheryl J.; Nganje, William E.; Kaitibie, Simeon; Johnston, Gretchen. Bread producers are taking advantage of healthy feeding habits by developing new "low carbohydrate" products to entice customers. These low carbohydrate breads are generally more expensive than conventional types. This study tests the hypothesis that consumers are willing to pay higher premium for "low carbohydrate" breads at various locations and markets. We use retail data in a hedonic pricing framework to estimate the premium paid for the "low carbohydrate" attribute of bread. Results show that the implicit price of the "low carbohydrate" attribute of bread ranges from about 0.06¢ to 1.1¢ per gram, reflecting the amount consumers are willing to pay above the price of conventional bread. Tipo: Conference Paper or Presentation Palavras-chave: Low carbohydrate bread; Hedonic price; Willingness to pay; Institutional and Behavioral Economics; D12. Ano: 2005 URL: http://purl.umn.edu/19428 Food Recalls and Food Safety Perceptions: The September 2006 Spinach Recall Case AgEcon Onyango, Benjamin M.; Miljkovic, Dragan; Hallman, William K.; Nganje, William E.; Condry, Sarah C.; Cuite, Cara L.. This study analyzes public perceptions on food safety using a national survey conducted soon after the nationwide spinach recall (November 2006). We explore relationships between peoples' perceived risks of food contamination (spinach in this case) and their trust in the institutions in charge of safeguarding/ensuring safety. Finally, we explore relationships between individual observance of basic good food handling practices and food safety. Trust in institutions through which food passes and regulatory agencies were shown to be critical in determining food safety perceptions. For example, skepticism with which the public views food corporations (processors, transporters or retailers) impacted food safety perceptions negatively. On the other, confidence... Tipo: Working or Discussion Paper Palavras-chave: Food recalls; Food safety; Public perceptions; Spinach; Food Consumption/Nutrition/Food Safety. Ano: 2007 URL: http://purl.umn.edu/10004 FOOD SAFETY REGULATION, PRODUCT PRICING, AND PROFITABILITY: THE CASE OF HACCP AgEcon Nganje, William E.; Mazzocco, Michael A.; McKeith, Floyd K.. This paper assesses the impact of mandatory Hazard Analysis of Critical Control Points (HACCP) regulation on output price for small meat processors and packers and evaluates implications for firm-level profitability. The importance of HACCP regulation and pricing is an issue that deserves in-depth analysis because of its implications for the survival of small firms in the meat industry. To investigate this issue a survey was sent to meat processors and packers in the United States to collect data on HACCP expenses, output price before and after HACCP implementation, and inputs prices and quantities. Although output price did not increase significantly to compensate for HACCP expenses, analysis of the translog profit function revealed that small firms were... Tipo: Working or Discussion Paper Palavras-chave: HACCP; Product pricing; Profitability; Translog profit function; U.S. meat processing industry; Food Consumption/Nutrition/Food Safety. Ano: 1999 URL: http://purl.umn.edu/23077 VALUATION OF NEW SPRING WHEAT VARIETIES: TRADEOFFS FOR GROWERS AND END-USERS (SUMMARY) AgEcon Dahl, Bruce L.; Wilson, William W.; Johnson, D. Demcey; Nganje, William E.. Variety release decisions involve a number of tradeoffs, usually between grower and end-user characteristics as well as significant uncertainties about agronomic, quality, and economic variables. In this study, methodologies were developed to value tradeoffs for grower and end-user characteristics for wheat. The models capture effects of variability in agronomic, quality, and economic variables. The models were applied for three experimental varieties which have since been released and for two hypothetical varieties. Results indicate two of the experimental varieties provide improvements in grower and end-use value over most of the incumbents. Comparison of a risk adjusted portfolio model consisting of characteristics of end-use and grower values... Tipo: Working or Discussion Paper Palavras-chave: Variety Development; Grower Value; End-user Value; North Dakota; Tradeoffs; Stochastic Dominance; Portfolio Value; Crop Production/Industries. Ano: 2001 URL: http://purl.umn.edu/23590 FARMER EDUCATION AND ADOPTION OF SLASH AND BURN AGRICULTURE AgEcon Schuck, Eric C.; Nganje, William E.; Yantio, Debazou; Aquach, Emmanuel. Education can play a critical role in moving farmers in developing countries away from environmentally harmful slash and burn agriculture. The present research examines the extent to which extension education can promote adoption of cropping systems other than slash and burn. Choice of cropping system by farmers in Cameroon, whether slash and burn, multiple crops, or mono-cropping, is modeled as a function of farm size, farmer educational level, and visits by extension personnel. Results indicate that higher visitation rates by extension personnel reduce not only the likelihood of farmers choosing slash and burn agriculture, but also promotes movement into mono-cropping. Since mono-cropping represents a move toward export-oriented agriculture in... Tipo: Working or Discussion Paper Palavras-chave: Conservation; Slash and burn; Production technology; Economic development; Farm Management. Ano: 2001 URL: http://purl.umn.edu/23587 Comparison of Perception of Risk and Willingness to Consume GM Foods AgEcon Wachenheim, Cheryl J.; Nganje, William E.; Lesch, William C.. The dichotomy between perceptions of the acceptability of risk associated with genetically modified (GM) foods and willingness to consume GM foods is investigated. Results indicate that some consumers are willing to consume GM foods even though they may perceive such foods as somewhat unsafe, with determinants such as self-perceived knowledge about the availability of GM foods and altruistic motives having positive and significant impacts on their consumption decision. Efforts towards decreasing perceptions of risk and ultimately increasing acceptance of, and demand for, GM foods should address issues related to their altruistic characteristics and outrage. Tipo: Report Palavras-chave: Genetic modified foods; Multinomial logit; Risk perception; Willingness to consume GM foods; Food Consumption/Nutrition/Food Safety; Q19; D12. Ano: 2008 URL: http://purl.umn.edu/6876 STRATEGIC HEDGING FOR GRAIN PROCESSORS AgEcon Wilson, William W.; Wagner, Robert; Nganje, William E.. Price risk management problems confronting grain processors differ somewhat from conventional motives for hedging. There are two components of this problem that are addressed in this study. One is the competitive characteristics of the processing sector, the structure and conduct of which ultimately determines the relationship between input and output prices. In some cases, these are highly correlated and in others they are not. The second refers to the hedge horizon, or, how far forward a firm should cover its inevitable short cash positions. This study incorporates these two components of hedging into a mean-variance framework to evaluate how they impact price risk management decisions for processors. A theoretical model is developed which is then... Tipo: Working or Discussion Paper Palavras-chave: Hedging; Optimal hedge ratios; Food processors; Risk management; Marketing. Ano: 2003 URL: http://purl.umn.edu/23637 ECONOMIC ANALYSIS OF THE PROPOSED NORTH DAKOTA WHEAT POOL; SUMMARY AgEcon Koo, Won W.; Nganje, William E.; Johnson, D. Demcey; Park, Joon J.; Taylor, Richard D.. The ND Durum Wheat Pool may provide additional revenue to durum wheat producers by raising the domestic prices in the North American market with full cooperation from the Canadian Wheat Board. The pool also could provide additional revenue to its members by improving marketing efficiency. On the other hand, the ND Spring Wheat Pool is less likely to provide additional revenue to spring wheat producers by raising domestic prices, mainly because hard red spring and winter wheat are highly substitutable. Efficiency gains also could be smaller than for durum wheat. Tipo: Working or Discussion Paper Palavras-chave: Marketing pool; Market power; Efficiency gains; Durum wheat; Hard red spring wheat; Pool price; Organizational structure; Operating costs; Marketing. Ano: 1999 URL: http://purl.umn.edu/23453 Food Safety and Defense Risks in the U.S.-Mexico Produce Chain AgEcon Nganje, William E.; Richards, Timothy J.; Bravo, Jesus; Hu, Na; Kagan, Albert; Acharya, Ram N.; Edwards, Mark R.. Tipo: Journal Article Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety; I18; I28; L51. Ano: 2009 URL: http://purl.umn.edu/94707 ECONOMIC IMPACTS OF FUSARIUM HEAD BLIGHT IN WHEAT AND BARLEY: 1993-2001 AgEcon Nganje, William E.; Kaitibie, Simeon; Wilson, William W.; Leistritz, F. Larry; Bangsund, Dean A.. Fusarium Head Blight (FHB), commonly known as scab, has been a severe problem for wheat and barley producers since 1993. This study provides an update of economic losses suffered by wheat and barley producers in scab-affected regions in the United States. Emphasis is placed on estimating direct and secondary economic impacts of yield and price losses suffered by wheat and barley producers from 1993 to 2001. Nine states are included in the analysis for three wheat classes. Three of the nine states were also used for the analysis of malting and feed barley. The cumulative direct economic losses from FHB in hard red spring (HRS) wheat, soft red winter (SRW) wheat, durum wheat, and barley are estimated at $2.492 billion from 1993 through 2001. The... Tipo: Working or Discussion Paper Palavras-chave: Fusarium Head Blight; Scab; Vomitoxin; Crop losses; Wheat; Barley; Crop Production/Industries. Ano: 2004 URL: http://purl.umn.edu/23627 OPERATIONAL EFFICIENCY OF US/CANADA WHEAT POOL: A GAME THEORY ANALYSIS AgEcon Nganje, William E.; Koo, Won W.; Johnson, D. Demcey; Park, Joon J.; Taylor, Richard D.. This paper develops a game theory optimization model of market efficiency and derives conditions under which voluntary pooling is sustained for US/Canada durum and hard red spring wheat producers. Analysis reveals that United States and Canadian farmers can increase farm returns with efficiency gains from pooling and by internalizing benefits from grain blending and logistics. The model is used to analyze diverse factors affecting the sustainability of such a pool. Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Marketing. Ano: 2000 URL: http://purl.umn.edu/36439 ECONOMIC IMPACTS OF FUSARIUM HEAD BLIGHT IN WHEAT AND BARLEY: 1998-2000 AgEcon Nganje, William E.; Johnson, D. Demcey; Wilson, William W.; Leistritz, F. Larry; Bangsund, Dean A.; Tiapo, Napoleon M.. Fusarium Head Blight (FHB), commonly known as scab, has been a severe problem for wheat and barley producers since 1993. This study provides an update of economic losses suffered by wheat and barley producers in scab-affected regions in the United States. Emphasis is placed on estimating direct and secondary economic impacts of yield and price losses suffered by wheat and barley producers from 1998 to 2000. Nine states are included in the analysis for three wheat classes. Three of the nine states were also used for the analysis of malting and feed barley. The cumulative direct economic losses from FHB in hard red spring (HRS) wheat, soft red winter (SRW) wheat, durum wheat, and barley is estimated at $870 million from 1998 through 2000. The combined... Tipo: Working or Discussion Paper Palavras-chave: Fusarium Head Blight; Scab; Vomitoxin; Crop losses; Wheat; Barley; Crop Production/Industries. Ano: 2001 URL: http://purl.umn.edu/23515 Offsetting Behavior: Consumers' Response to Food Safety Policies AgEcon Miljkovic, Dragan; Nganje, William E.; Ndembe, Elvis. Tipo: Journal Article Palavras-chave: Food safety policies; Consumer response; Offsetting behavior; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Q18; I18. Ano: 2008 URL: http://purl.umn.edu/94677 THE IMPACT OF HACCP ON FACTOR DEMAND AND OUTPUT SUPPLY ELASTICITIES OF RED MEAT AgEcon Nganje, William E.; Mazzocco, Michael A.. This study uses firm-level data during the hazard analysis critical control point (HACCP) implementation period (1997 - 2000) to analyze the impact of HACCP on input demand and output supply elasticities of firms in the red meat industry and derive implications for efficiency and moral hazard issues associated with the implementation of HACCP systems. The results show that HACCP causes factor demand for labor, material, and capital to be less inelastic while the elasticity of output supply did not change significantly. The interdependent relationships among HACCP and input prices and output result in efficiency gains. Tipo: Conference Paper or Presentation Palavras-chave: HACCP; Factor demand; Elasticities of substitution; Output supply elasticities; Translog cost function; Efficiency; Red meat; Food Consumption/Nutrition/Food Safety. Ano: 2003 URL: http://purl.umn.edu/35995 Estimating Price Premiums for Breads Marketed as “Low-Carbohydrate Breads” AgEcon Nganje, William E.; Kaitibie, Simeon; Wachenheim, Cheryl J.; Acquah, Emmanuel T.; Matson, Joel; Johnson, Grant. Retail data are used in a hedonic pricing framework to estimate the premium paid for the “low-carbohydrate” attribute and other attributes of bread at grocery and non-grocery stores in a regional market. Results show that consumer willingness to pay is influenced by the “low-carbohydrate” attribute as well as by sugar, fiber, and fat content; serving size; and size of loaf. Implicit price premiums vary significantly by retail location. However, price differentials may be compounded by the absence of an acceptable definition for low-carbohydrate foods. Tipo: Journal Article Palavras-chave: Demand and Price Analysis; Marketing. Ano: 2008 URL: http://purl.umn.edu/55976 Hysterisis in Food Safety Investments AgEcon Richards, Timothy J.; Nganje, William E.; Acharya, Ram N.. Concerns regarding the safety and integrity of the fresh produce supply chain are becoming all too common in the media. In 2006, an outbreak of E. coli O157:H7 from farms in Central California sickened almost two hundred people and lead to the deaths of three. Estimated costs to the industry ranged from $100 per month to $200 million until spinach sales returned to normal. By some accounts, the spinach industry has yet to recover and may not for years to come. The incident, however, has lead to a host of initiatives from industry officials, legislators and fresh produce retailers to ensure the safety of fresh produce. The necessary technology and best practices knowledge exists, yet some growers have not made the investment required to ensure that such... Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Industrial Organization. Ano: 2008 URL: http://purl.umn.edu/49888 State-Branded Programs and Consumer Preference for Locally Grown Produce AgEcon Nganje, William E.; Hughner, Renee Shaw; Lee, Nicholas E.. Revitalization of state brands is deemed important to several constituencies. Stated preference with choice experiment methods were used to elicit consumer preferences for two locally grown products: spinach, which has had a well-publicized food safety incidence, and carrots, which have had no such incidence in recent history. A full factorial design was used to implement the choice experiment, with each commodity having four identical attributes varying at different levels. Findings reveal that consumers are willing to pay a premium for locally grown spinach marked with the Arizona Grown label over locally grown spinach that was not labeled. This premium was higher than the premium that would be paid for state-branded carrots. This difference highlights... Tipo: Journal Article Palavras-chave: State-branded produce; Certification; Food safety; Traceability; Discrete choice models; Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Marketing. Ano: 2011 URL: http://purl.umn.edu/107472 EFFICIENT QUANTITATIVE RISK ASSESSMENT OF JUMP PROCESSES: IMPLICATIONS FOR FOOD SAFETY AgEcon Nganje, William E.. This paper develops a dynamic framework for efficient quantitative risk assessment from the simplest general risk, combining three parameters (contamination, exposure, and dose response) in a Kataoka safety-first model and a Poisson probability representing the uncertainty effect or jump processes associated with food safety. Analysis indicates that incorporating jump processes in food safety risk assessment provides more efficient cost/risk tradeoffs. Nevertheless, increased margin of safety may lead to reduction in food safety expenses on areas that have relative advantage in reducing mean risk. The paper also develops an alternative measure for the value of risk reduction associated with uncertainty of jump processes and the cost of food safety. Tipo: Working or Discussion Paper Palavras-chave: Food safety; Efficient regulation; Quantitative risk assessment; Poisson jump processes; Value of risk reduction; Food Consumption/Nutrition/Food Safety. Ano: 1999 URL: http://purl.umn.edu/23662 Offsetting Behavior and the Benefits of Food Safety Policies in Vegetable Preparation and Consumption AgEcon Ndembe, Elvis; Nganje, William E.; Miljkovic, Dragan. Foodborne disease outbreaks have a tremendous impact on society, including foodborne illnesses, hospitalizations, lost work time, and deaths. These food-safety events have a significant influence in shaping consumer's perception of risk. In food consumption, outbreaks of foodborne illnesses also have an effect on the development of public health policy. Due to these safety-related uncertainties in the food supply chain, various regulatory safety and health policies are implemented to decrease potential harm to likely victims. The expected effect of these food-safety policies forecasted in terms of reduction in foodborne illnesses, mortality, and food-related diseases may be overstated if consumer's offsetting behavior is overlooked. Reduction and in some... Tipo: Report Palavras-chave: Consumer Behavior; Food Safety Policies; HACCP; Offsetting Behavior; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety. Ano: 2008 URL: http://purl.umn.edu/6505 Registros recuperados: 50 Primeira ... 1 2 3 ... Última

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