|
|
|
| Registros recuperados: 337 | |
|
|
| Mo, Lijia. |
| This study examined whether the efficiency measures were invariant to choice of parametric and nonparametric methods for a sample of 183 wheat farms. The efficiency measures from the deterministic parametric method were smaller than those from the deterministic method. There was a trade-off between scale efficiency and economic efficiency. In the deterministic nonparametric method, the economic efficiency, scale efficiency and overall efficiency results were invariant to the number of inputs or the dimensionality. Only allocative and pure technical efficiency measures depended on the dimensionality. This work illustrated the importance of holding curvature for the cost function in stochastic frontier results. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Efficiency analysis; Deterministic nonparametric method; Parametric stochastic frontier; Production Economics; Q11. |
| Ano: 2009 |
URL: http://purl.umn.edu/56427 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Carter, Colin A.; Smith, Aaron D.. |
| Genetic modification of crops has revolutionized food production, but it remains controversial due to food safety and environmental concerns. A recent food safety scare provides a natural experiment on the corn market's willingness to accept unapproved genetically modified organisms. In 2000, a genetically modified corn variety called StarLink was discovered in the food-corn supply, even though it was not approved for human consumption. To estimate the price impact of this event, we develop the relative price of a substitute method, which applies not only to the StarLink event but also to rare events in other markets. We apply this method to measure the price impact of the StarLink contamination on the U.S. corn market. We find that the contamination led... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Q11; Q18; C22. |
| Ano: 2006 |
URL: http://purl.umn.edu/25447 |
| |
|
| |
|
|
| Fortenbery, T. Randall. |
| This paper examines three invited papers focused on commodity prices. Public responses to high nominal commodity prices and perceived increases in price risk have ranged from attempts to assign blame, attempts to change contracting arrangements, and development of public policy that ‘‘protects’’ the market from future occurrences of unacceptable behavior. Interestingly, a result of increased commodity price volatility has suggested that futures markets no longer ‘‘work.’’ This is ironic given that futures markets initially came into existence as tools for managing the negative impacts of commodity price risk. In response to perceptions of market failure some are looking for strategies to regulate the who and how of futures trading. |
| Tipo: Journal Article |
Palavras-chave: Futures markets; Hedging; Price risk; Risk management; Speculation; Agribusiness; Agricultural Finance; Marketing; Risk and Uncertainty; G13; Q11; Q13; Q14. |
| Ano: 2009 |
URL: http://purl.umn.edu/53084 |
| |
|
|
| Goddard, Ellen W.; Boxall, Peter C.; Emunu, John Paul; Boyd, Curtis; Asselin, Andre; Neall, Amanda. |
| The Canadian egg industry has introduced a number of specialty eggs, including Omega-3, organic, free run/range, vitamin enhanced and vegetarian over the past few decades. These eggs are generally sold at prices higher than the ‘normal’ egg and there has been little analysis of the consumer awareness of and interest in purchasing these eggs. All previous econometric analysis of the Canadian egg market has assumed eggs and consumers are homogeneous. This study makes use of Stated preference and Revealed preference data to model the consumer interest in the different egg types. Stated preference surveys were conducted in two separate years: 2005 during which consumers were surveyed on their interest in Omega-3 and Vitamin Enhanced eggs relative to ‘normal’... |
| Tipo: Report |
Palavras-chave: Consumer behaviour; Egg consumption; Differentiated products; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Marketing; D12; Q11; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/52087 |
| |
|
| |
|
| |
|
| |
|
|
| Resende Filho, Moises de Andrade. |
| This article investigates the potential gains to the U.S. meat sector with the implantation of the U.S. National Animal Identification System (NAIS). The focus is on the effect that the NAIS could have on consumers’ risk perception about eating meat. System of demand equations are estimated using time series of food safety indexes variables used as proxies for consumers’ reactions to news on meat safety issues. The series of food safety indexes are built on the basis of the number of food safety news reported in top U.S. newspapers. Using the preferred model estimates, three scenarios are constructed in order to account for the cases wherein the NAIS is not implemented, is implemented only for beef and is implemented for beef and pork. The differences in... |
| Tipo: Journal Article |
Palavras-chave: Animal identification system; Food safety; System of demand equations; Meat industry; USA.; Agribusiness; C22; Q11; Q13; Q18.. |
| Ano: 2008 |
URL: http://purl.umn.edu/61199 |
| |
|
| |
|
| |
|
| |
|
| |
| Registros recuperados: 337 | |
|
|
|
