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| Registros recuperados: 19 | |
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| Kim, C.S.; Hallahan, Charles B.; Taylor, Harold; Schluter, Gerald E.. |
| This article examines the effects of increasing market concentration level in the U.S. nitrogen fertilizer industry. Results indicate that the costs of market power are greater than the benefits of market concentration, in terms of manufacturing cost efficiency. To provide a stable nitrogen fertilizer supply at a relatively low price, it may be necessary to control natural gas price and/or reduce new import barriers from Middle East and former member states of the Soviet Union, where low cost gas is produced as a byproduct. Keywords: Nitrogen fertilizer, oligopoly, economies of size, market power, cost-efficiency. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nitrogen fertilizer; Oligopoly; Economies of size; Market power; Cost-efficiency.; Marketing. |
| Ano: 2002 |
URL: http://purl.umn.edu/19674 |
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| Kim, C.S.; Hallahan, Charles B.; Lindamood, W.A.; Schaible, Glenn D.; Payne, James. |
| USDA uses the concept of "publish-ability" rather than statistical reliability of an estimate for quality validation of USDA estimates, which is solely based on the sample size and the coefficient of variation (CV). We demonstrate conceptually how the reliability of the sample mean can be tested by estimating the upper and lower bounds of the confidence interval for an unknown population mean using the CV. However, the reliability test for the sample mean can be made only under the normality assumption. USDA multiple-way Agricultural Resource Management Survey (ARMS) estimates are used to illustrate the relative measure of precision for sample-based estimators. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2004 |
URL: http://purl.umn.edu/31267 |
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| Lee, Donna J.; Kim, C.S.; Schaible, Glenn D.. |
| Soybean production ranks among the largest agricultural cash crops in the U.S., second only to corn. U.S. soybean production topped 3 billion bushels in 2005 with sales of $17 billion. Approximately 58% of U.S. soybeans are grown in Iowa, Illinois, Minnesota, Indiana, and Nebraska. A small percentage of the U.S. soybean crop, 2%, goes to human consumption in the form of whole beans, soybean oil, and soybean meal products. A third of the crop, 1 billion bushels per year is exported annually to China, EU, Mexico, Japan, and Taiwan, and other countries. Most of the crop, 2 billion bushels, goes to the U.S. livestock industry to feed poultry, hogs, and cattle. Variations in the supply of soybeans thus directly impact livestock production. In recent years,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/21113 |
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| Schaible, Glenn D.; Kim, C.S.; Lambert, Dayton M.. |
| This study used the 2005 ERS CEAP-ARMS data for corn production to first compare key operator, field, farm, economic, and environmental characteristics of conservation program participants with non-participants, by farm-size class. We then estimate a cost-function based technology adoption model of producer decisions regarding the allocation of field-level acres between corn production and infield and perimeter-field conservation structures to examine how these conservation choices differ between program participants and non-participants, while accounting for differences in other field, farm, and environmental factors. Our null hypothesis is that the average conservation structural practice acres across U.S. corn acres supplied by growers participating... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9812 |
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| Lewandrowski, Jan; Kim, C.S.. |
| An important policy decision in managing invasive species is how to allocate resources between activities aimed at preventing the arrival of new pests - including additional arrivals of existing pests - and activities aimed at reducing the damages done by species that are already here. We develop a dynamic model for managing a generic invasive pest with an uncertain arrival date. The optimal conditions reveal that it is generally more efficient to spend a larger share of outlays for exclusion activities before a species arrives than after it is known to be here. They also show that outlays should be allocated such that the marginal costs of control measures equal the benefits from the marginal reduction of the species' population growth rate, and the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/21948 |
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| Kim, C.S.; Schaible, Glenn D.; Garrett, Lynn; Lubowski, Ruben N.; Lee, Donna J.. |
| Soybeans, the second highest cash crop following corn in the U.S., have come under attack by invasive species, the soybean aphid from the North and soybean rust from the South. We estimated the economic losses resulting from soybean aphid infestation by using a dynamic equilibrium model. Results indicate that, first, the reduction of soybean production resulting from soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to the domestic demand. Second, the economic losses to U.S. soybean producers would grow on average annually between $12.8 million and $23.4 million during the first five years of infestation. In the longer-run, soybean producers would suffer greater... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2006 |
URL: http://purl.umn.edu/21163 |
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| Kim, C.S.; Lubowski, Ruben N.; Lewandrowski, Jan; Eiswerth, Mark E.. |
| We present a conceptual, but empirically applicable, model for determining the optimal allocation of resources between exclusion and control activities for managing an invasive species with an uncertain discovery time. This model is used to investigate how to allocate limited resources between activities before and after the first discovery of an invasive species and the effects of the characteristics of an invasive species on limited resource allocation. The optimality conditions show that it is economically efficient to spend a larger share of outlays for exclusion activities before, rather than after, a species is first discovered, up to a threshold point. We also find that, after discovery, more exclusionary measures and fewer control measures are... |
| Tipo: Journal Article |
Palavras-chave: Invasive species; Exclusion; Control; Eradication; Public expenditures; Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/10176 |
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| Kim, C.S.; Schaible, Glenn D.; Daberkow, Stan G.. |
| Rapidly declining gasoline prices from their record high during the summer of 2008, while ethanol prices remained relatively high, made it difficult for many bio-fuel policy modelers to fully explain the impacts of U.S. bio-fuel policies on fuel prices. Using profit-maximization models for blenders, refiners, and distillers, we conduct a comparative static analysis to measure the relative magnitudes of the impacts of tax credits and blending mandates on fuel-energy market equilibrium prices. Our results indicate that first, the prices of all fuels including conventional gasoline, ethanol, and blended gasoline decline as the biofuel tax credit increases, but they increase as the rate of the blending mandate increases. Second, the shadow value of a blending... |
| Tipo: Journal Article |
Palavras-chave: Bio-fuel tax credits; Blended gasoline; Blender’s market power; Mandated blending; Tariff; Agribusiness; Marketing; Political Economy; Resource /Energy Economics and Policy; Q11; Q21; Q42; Q48. |
| Ano: 2010 |
URL: http://purl.umn.edu/57157 |
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| Kim, C.S.; Taylor, Harold; Sandretto, Carmen L.. |
| This research presents a competitive dynamic model to evaluate the economic and groundwater quality benefits resulting from the adoption of soil/water nitrogen testing. The model is applied to an irrigated corn production county in the Nebraska Mid-State area where the groundwater contamination level from nitrates is reported to be, on average, 18.7 parts per million (ppm). Adoption of nutrient management practices would result in increased economic benefits to farmers and reduced nitrate stocks in groundwater. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1999 |
URL: http://purl.umn.edu/35719 |
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| Registros recuperados: 19 | |
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