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| Registros recuperados: 20 | |
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| Taff, Steven J.; Tiffany, Douglas G.; Weisberg, Sanford. |
| We were asked by the Legislature to conduct "research into the effects feedlots have on the value of nearby property." To do so, we carried out a statistical examination of the interrelationships among residential property sales prices and nearby feedlots in a southwestern Minnesota study area. Structure and location data for 292 residential property sales in Redwood and Renville Counties, excluding the cities of Olivia and Redwood Falls, were linked to the location and physical characteristics of every larger feedlot within three miles of each sale. The basic approach was to ask, "Does the addition of information about feedlot proximity help us explain observed house prices beyond the explanatory power of statistical models that use only the house's... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Land Economics/Use; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/14121 |
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| Tiffany, Douglas G.; Jordan, Brendan; Dietrich, Erin; Vargo-Daggett, Becca. |
| Production of biomass from native prairie species offers the opportunity to produce energy and chemicals while providing substantial ecological services in the Northern Great Plains. This paper analyzes the application of rapid pyrolysis to produce bio-oil, which has the potential for use as a low-grade fuel oil or as a source for extraction of valuable chemicals. Yields of bio-oil, the quantities of extractable chemicals, and chemical prices drive the economics of this concept, which has a more extensive track record utilizing wood chips. A spreadsheet model was developed to determine gross margins available to defray costs to extract and refine such chemical products as hydroxyacetaldehyde, phenol, formic acid, acetic acid and various resins.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Prairie grasses; Pyrolysis; Economics; Chemicals; Energy; Bio-oil; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/13838 |
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| Tiffany, Douglas G.. |
| Biodiesel is a renewable fuel derived from vegetable oils or animal fats that can substitute for diesel fuel in engines or fuel oil in furnaces. Biodiesel has proven lubricity benefits at low blends and performs well as a substitute for petro-diesel. Blends of biodiesel reduce particulate matter (PM), volatile organic compounds (VOC), as well as other toxic gases and Greenhouse Gases (GHG). Reduced emissions from biodiesel blends result from its zero sulfur content and higher oxygen content versus petro-diesel. Federal standards established by the U.S. Environmental Protection Agency (EPA) have forced local authorities to implement policies to reduce VOC's, one of the precursors of ground level ozone formation, and other toxic emissions. The Twin... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/13849 |
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| Tiffany, Douglas G.. |
| The growth of wind power as an aspect of Minnesota’s portfolio of electricity has been propelled to its current level by policy initiatives at both the federal and state levels. Existing statutes establish requirements for further expansion of wind energy in this state in the years to come. Locally, production economics exert their influence as wind speed and duration are translated to capacity factor, which reveals the amount of power that can be generated at a particular site. After the flow resource is thus quantified, comes the calculus of economic viability. This consists of determining the capital and operating costs and eligibility for loans and grants as well as the negotiations of wind rights, easements, and power purchase agreements. To date,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/6626 |
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| Tiffany, Douglas G.; Fruin, Jerry E.. |
| This study describes a portion of the grain production and movement patterns in Minnesota. 1999 levels of grain and oilseed production were identified as well as livestock populations in individual counties of the state. Animal scientists were consulted to ascribe typical consumption levels by the various livestock living in particular counties. A series of assumptions were required in order to determine the number of additional animals required to maintain sufficient breeding herds and flocks of livestock. Graphs were constructed to present the consumption levels of grain by livestock species in a statewide fashion. Tables provide detailed data to describe the consumption of feed grains and soybean meal by livestock in each county. Use of electronic... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Crop Production/Industries. |
| Ano: 2002 |
URL: http://purl.umn.edu/13851 |
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| Tiffany, Douglas G.. |
| The growth of wind power as an aspect of Minnesota’s portfolio of electricity has been propelled to its current level by policy initiatives at both the federal and state levels. Existing statutes establish requirements for further expansion of wind energy in this state in the years to come. Locally, production economics exert their influence as wind speed and duration are translated to capacity factor, which reveals the amount of power that can be generated at a particular site. After the flow resource is thus quantified, comes the calculus of economic viability. This consists of determining the capital and operating costs and eligibility for loans and grants as well as the negotiations of wind rights, easements, and power purchase agreements. To date,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/7303 |
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| Fruin, Jerry E.; Tiffany, Douglas G.. |
| This study describes the movements of grain shipments from Minnesota to their final destinations. A sample of approximately 100 (20 percent) of Minnesota grain elevators reported their monthly grain shipments by mode to each of nine destinations from July 1999 to June 2000. The researchers used this data to project grain shipments from Minnesota and each of six crop reporting districts by grain and by transportation mode to final destination. Minneapolis and Mississippi River ports were the most important destinations, receiving 28.4percent of all shipments. Pacific Northwest export ports received 17.9 percent. Minnesota based corn, soybean, and wheat processors received 16.6 percent of shipments. Duluth-Superior received 10.5 percent and Mexico... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agribusiness. |
| Ano: 2002 |
URL: http://purl.umn.edu/13513 |
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| Lazarus, William F.; Tiffany, Douglas G.. |
| The utilization of short rotation woody crops (SRWC) to produce wood on marginal crop and pasture land could greatly enhance the production of wood for various uses in Minnesota with utilization for energy being of current interest. SRWC involves the more intensive application of inputs on more valuable land than naturally regenerated forests that currently supply the bulk of the forest products industry in Minnesota. Breeding efforts to improve productivity and disease resistance in hybrid poplar species are making the technology of SRWC competitive with agricultural uses of marginal land. This study models the economic impact of a potential shift in use of the land resource by replacing production of hay and pasture that provides feed for cow-calf beef... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Hybrid Poplar; SRWC; IMPLAN; Economics; Energy; Ethanol; OSB; Resource /Energy Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/46869 |
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| Registros recuperados: 20 | |
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