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| Registros recuperados: 12 | |
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| Huang, Haixiao; Miller, Gay Y.. |
| The paper evaluates swine odor management strategies using the fuzzy extension of the Analytical Hierarchy Process (AHP), which is a multiple criteria decision making approach based on fuzzy scales. The evaluation is conducted using data from our cost effectiveness study of odor management strategies and our on farm studies relating odor to various management practices. These strategies include manual oil sprinkling, automatic oil sprinkling, wet scrubber, diffusion-coagulation-separation (DCS) deduster, pelleting feed, and draining shallow pit weekly. The criteria employed to evaluate the strategies are odor reduction efficiency, costs, nutrients in manure, and other benefits. Two producer profiles are considered: (a) producers who are pressured to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/21966 |
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| Huang, Haixiao; Sherrick, Bruce J.; Gomez, Miguel I.; Miller, Gay Y.. |
| Based on a spatiotemporal hedonic farmland price model and county-level data in Illinois from 1979 to 1999, we examined the impact of swine production on farmland values. Our results show that, in addition to the conventional determinants of farmland values, an increase in swine production intensity has a negative relationship with farmland values while an increase in swine operation scale had a positive association with farmland values at the county level in Illinois. We also estimate the impact of changes in the Illinois swine industry over the period 1980-1999 on farmland values at the state level and find that changes in swine inventory and scale of swine operations have led to changes in farmland prices from $-10.56 to $62.96 per acre. In general, the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
| Ano: 2003 |
URL: http://purl.umn.edu/22047 |
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| Khanna, Madhu; Onal, Hayri; Chen, Xiaoguang; Huang, Haixiao. |
| This article develops a dynamic micro-economic land use model to identify the cost-effective allocation of cropland for traditional row crops and perennial grasses and the mix of cellulosic feedstocks needed to meet pre-determined biofuel targets over the 2007-2022 period. Yields of perennial grasses are obtained from a biophysical model and together with county level data on costs of production for Illinois are used to examine the implications of these targets for crop and biofuel costs, greenhouse gas emissions, and nitrogen use. The economic viability of cellulosic feedstocks is found to depend on their yields per acre and the opportunity cost of land. The mix of viable cellulosic feedstocks varies spatially and temporally with corn stover and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy; Land Economics/Use. |
| Ano: 2008 |
URL: http://purl.umn.edu/53491 |
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| Chen, Xiaoguang; Huang, Haixiao; Khanna, Madhu; Onal, Hayri. |
| Biofuels have been promoted to achieve energy security and as a solution to mitigating climate change. This research presents a framework to examine the extent to which biofuel mandates and subsidies reduce gasoline consumption and their implications for the food and fuel prices. A dynamic, multi-market equilibrium model, Biofuel and Environmental Policy Analysis Model (BEPAM), is used to estimate the effects of these policies on cropland usage between food crops and fuel crops and food and fuel prices, and to analyze the incentives provided by alternative policies for the mix of biofuels from corn and various cellulosic feedstocks that are economically viable over the 2007-2022 period. The provision of biofuel subsidies that accompany the mandate under... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/61629 |
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| Huang, Haixiao; Miller, Gay Y.. |
| Based on a swine producer's profit maximization model in which manure value and packers' live market weight pricing systems are considered, the optimal farm inventory and optimal hog market weight are simultaneously solved for scenarios generated from the combination of two crop rotations, two forms of manure storage, two levels of manure incorporation, and two nutrient application standards. First, our results suggest that manure value has a significant impact on the optimal farm inventory as well as on the profitability of an operation. The optimal size of operation identified is quite large and varies considerably among the scenarios. Our results indicate that shallow pit buildings with lagoons can support a larger operation scale and require less... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/22233 |
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| Huang, Haixiao; Miller, Gay Y.. |
| In this paper, statistical and economic analyses are used in identifying, analyzing, and modeling the relationships among citizen complaints, swine production and community characteristics, EPA inspections, and regulatory violations. The primary results of this research include assessments of factors that affect citizen complaints and factors that affect the probability of regulatory violations. In addition, the analyses also provide statistical results of a comparison of the efficiencies of different types of site inspections in regulatory violation detection. Our results provide information valuable for understanding issues surrounding the development of the swine production industry and local communities. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/20196 |
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| Huang, Haixiao; Miller, Gay Y.. |
| Variability in pig growth is an intrinsic characteristic of swine production. The optimal marketing strategies are identified to minimize the negative economic impact of variability for a typical all-in-all-out swine finishing facility using a recent pricing matrix and data featuring swine production in the Midwestern region. Our results show that compared with marketing all pigs from a 1,020 head barn on the same day, marketing pigs in six truckloads on different dates as groups of pigs grow to more optimal size significantly improves the profitability of production as variability increases. This finding is in line with recent producer response to new pricing matrices that prove stronger price incentives for marketing more uniform pigs. We also find that... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Marketing. |
| Ano: 2004 |
URL: http://purl.umn.edu/19952 |
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| Registros recuperados: 12 | |
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