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Registros recuperados: 16 | |
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Fleming, Ronald A.; Adams, Richard M.; Ervin, David E.. |
Testing soils for nutrients is expected to improve groundwater quality. However, it is unknown whether soil testing will improve groundwater quality sufficiently to decrease the demand for direct regulation of agricultural practices. Focusing on an irrigated agricultural region in eastern Oregon, the economic and environmental aspects of soil testing are assessed using a spatially distributed, dynamic simulation model which links economic behavior with the physical processes that determine groundwater quality. Results indicate that soil testing of all fields increases farm profits and reduced groundwater nitrate concentration. However, the benefits are small in terms of potential improvements in groundwater quality |
Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
Ano: 1998 |
URL: http://purl.umn.edu/31171 |
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Fleming, Ronald A.; Babcock, Bruce A.; Wang, Erda. |
In Iowa, the release of confinement swine odors and manure nutrients into the environment has become an important issue. The impact of policies to address these issues depends, in part, on the cost of manure delivery, which depends on how manure is stored and the distance it must be hauled. This investigation considers the cost of delivering manure nutrients for two forms of manure storage, two target nutrients, two crop rotations, and two levels of field incorporation. Many studies have found that manure applications based on phosphorous (rather than nitrogen) increase delivery costs. This investigation shows that applications based on phosphorous can better match crop nutrient need, and thereby can lead to higher profits. |
Tipo: Working or Discussion Paper |
Palavras-chave: Livestock Production/Industries. |
Ano: 1998 |
URL: http://purl.umn.edu/18392 |
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Ibendahl, Gregory A.; Fleming, Ronald A.. |
The four profitability measures recommended by the Farm Financial Standards Task Force have limitations for examining wealth creation. Non-farm corporations, by contrast, have started to use Economic Value Added (EVA) to measure wealth creation. EVA has some advantages over other financial ratios because it fully accounts for the resources used on the farm and it includes both realized and unrealized capital gains in the calculation. This article examines the EVA metric for three years of farm financial data to determine if it provides additional information about wealth creation and profitability than do the other four ratios. Factors that help predict EVA are also examined. |
Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
Ano: 2003 |
URL: http://purl.umn.edu/35145 |
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Ibendahl, Gregory A.; Fleming, Ronald A.. |
Determining what to pay for cash rental rates is a big problem for most farmers. Typically, crop budgets are used for this decision. However, problems arise from this approach because the average revenue contained in the budget is often not the true marginal revenue. Farm size differences certainly affect the average and thus the marginal revenue. This paper calculates the true marginal revenue per acre so that a better estimate can be made of the cash rental rate. Farm analysis data is used to calculate the total revenue per acre. The first derivative then gives the marginal revenue. |
Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
Ano: 2003 |
URL: http://purl.umn.edu/35127 |
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Fleming, Ronald A.; Bazen, Ernest F.; Wetzstein, Michael E.. |
Student evaluation of teaching (SET) is employed as an aid in improving instruction and determining faculty teaching effectiveness. However, economic theory indicates the existence of externalities in SET scores that directly influence their interpretation. As a test of this existence, a multinomial-choice, ordered data estimation procedure is employed to identify course externalities influencing SET. These externalities include student class standing, required courses, class size, days a class meets, class meeting time, classroom location, and classroom design. Results indicate that externalities have a significant impact on teaching evaluations. Thus, failure to internalize these externalities will lead to biases in SET and questionable use of SET... |
Tipo: Journal Article |
Palavras-chave: Externalities; Ordered probit; SET; Teaching evaluation; A20; A22; I21. |
Ano: 2005 |
URL: http://purl.umn.edu/43486 |
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Registros recuperados: 16 | |
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