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| Registros recuperados: 42 | |
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| Nehring, Richard F.; Christensen, Lee A.; O'Donoghue, Erik J.; Sandretto, Carmen L.. |
| Recent trends in livestock concentration suggest that there may be an increasing risk of water pollution from manure applications. These trends in livestock operations may be offsetting improvements in commercial fertilizer management that have the potential to reduce the risk of water pollution. This conclusion was derived by tracking excess nutrient trends between 1996 and 2002 and by examining measures of economic performance for livestock farms. First, a link was established between the expansion of AFOs (Animal Feeding Operations) and excess nutrients from commercial fertilizer and manure sources. Second, technical efficiency was measured in order to identify whether technical efficiency explains structural change and in order to see whether... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/34764 |
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| O'Donoghue, Erik J.; MacDonald, James M.; Nehring, Richard F.. |
| Water quality has implications for the health of our ecosystem and the welfare of our population. Agriculture is one of the major contributors of non-point source pollution that contaminates our nation's water supplies. Understanding how farmers substitute manure for commercial fertilizers allows us to better understand the level of nitrogen that enters the soil and can seep into our waterways. In this paper, we explore the factors that help determine farmers' substitution rates between the two types of fertilizers. Location, crop type, and time all could play important roles. We analyze USDA farm level survey data for both crop and livestock farms covering the years 1996 to 2002 to create substitution rate estimates used on corn, soybean, and wheat... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2005 |
URL: http://purl.umn.edu/19252 |
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| Nehring, Richard F.; Fernandez-Cornejo, Jorge. |
| This paper estimates returns to scale and technical efficiency of corn farms following an input distance function approach and compares the relative performance of farm operator households with and without off-farm wages and salaries. We use 1995-2003 USDA data. The input distance function results suggest that off-farm outputs and inputs can be modeled in a multi-activity framework, which materially alter performance measures in the Corn Belt. We find that off-farm income boosts scale and technical efficiency of smaller operations. We also find that the number of hours worked off-farm by the spouse contributes to a higher technical efficiency. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2005 |
URL: http://purl.umn.edu/19566 |
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| Ball, V. Eldon; Lindamood, W.A.; Nehring, Richard F.; Mesonada, Carlos San Juan. |
| This paper provides a farm sector comparison of levels of capital input for fourteen OECD countries for the period 1973-2002. The starting point for construction of a measure of capital input is the measurement of capital stock. Estimates of depreciable capital are derived by representing capital stock at each point of time as a weighted sum of past investments. The weights correspond to the relative efficiencies of capital goods of different ages, so that the weighted components of capital stock have the same efficiency. Estimates of the stock of land are derived from balance sheet data. We convert estimates of capital stock into estimates of capital service flows by means of capital rental prices. Comparisons of levels of capital input among countries... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Financial Economics. |
| Ano: 2006 |
URL: http://purl.umn.edu/21315 |
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| Nehring, Richard F.; Banker, David E.; O'Donoghue, Erik J.. |
| Preliminary estimates of technical efficiency based on USDA data for 1997 through 2001 indicate that independent operations were significantly more efficient than contract operations. Preliminary estimates also indicate that both types of operations exhibited increasing returns to scale with contract operations appearing to exhibit significantly higher returns to scale than independent operations, but that larger contract and independent operations exhibit roughly comparable returns to scale. Our estimates of excess nutrients that derive from both commercial fertilizer and manure, comparing the performance of production contract operations and independent operations indicate that, in general, levels of excess nutrients per acre of land are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/22057 |
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| Fernandez-Cornejo, Jorge; Mishra, Ashok K.; Nehring, Richard F.; Hendricks, Chad; Southern, Malaya; Gregory, Alexandra. |
| The economic well-being of most U.S. farm households depends on income from both onfarm and off-farm activities. Consequently, for many farm households, economic decisions (including technology adoption and other production decisions) are likely to be shaped by the allocation of managerial time among such activities. While time allocation decisions are usually not measured directly, we observe the outcomes of such decisions, such as onfarm and off-farm income. This report finds that a farm operator’s off-farm employment and off-farm income vary inversely with the size of the farm. Operators of smaller farm operations improve their economic performance by compensating for the scale disadvantages of their farm business with more off-farm involvement.... |
| Tipo: Report |
Palavras-chave: Off-farm income; Farm households; Economic performance; Managerial time; Scale economies; Scope economies; Technical efficiency; Technology adoption; Farm size; Agricultural Finance; Farm Management. |
| Ano: 2007 |
URL: http://purl.umn.edu/7234 |
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| Pruitt, J. Ross; Gillespie, Jeffrey M.; Nehring, Richard F.; Qushim, Berdikul. |
| Using USDA’s Agricultural Resource Management Survey data, factors leading to the adoption of technology, management practices, and production systems by U.S. beef cow-calf producers are analyzed. Binary logit regression models are used to determine impacts of vertical integration; region of the U.S.; farm size, diversification, and tenure; and demographics on adoption decisions. Significant differences were found in adoption rates by region of the U.S., degree of vertical integration, and size of operation, suggesting the presence of economies of size and vertical economies of scope. Results also indicate high degrees of complementarity among technologies, management practices, and production systems. |
| Tipo: Article |
Palavras-chave: Cattle; Cow-calf; Management practices; Production systems; Technology adoption; Farm Management; D21; Q12; Q16. |
| Ano: 2012 |
URL: http://purl.umn.edu/123778 |
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| Morrison Paul, Catherine J.; Ball, V. Eldon; Felthoven, Ronald G.; Nehring, Richard F.. |
| This study uses a cost-function-based model of production processes in U.S. agriculture to represent producers' input and output decisions, and the implied costs of reductions in risk associated with leaching and runoff from agricultural chemical use. The model facilitates evaluation of the statistical significance of measured shadow values for "bad" outputs, and their input- and output-specific components, with a focus on the impacts on pesticide demand and its quality and quantity aspects. The shadow values of risk reduction are statistically significant, and imply increased demand for effective pesticides over time that stem largely from improvements in quality due to embodied technology, and that vary substantively by region. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Farm Management. |
| Ano: 2000 |
URL: http://purl.umn.edu/11986 |
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| Fernandez-Cornejo, Jorge; Nehring, Richard F.; Erickson, Kenneth W.. |
| This paper examines how off-farm work affects the economic performance of crop and (selected) livestock farms. It estimates returns to scale and technical efficiency following an input distance function approach and compares the relative performance of dairy and corn farm operator households with and without off-farm work. We use farm-level data from the USDA's ARMS survey for 1996-2005. The impact of off-farm work on scale and technical efficiency is examined from two viewpoints: first, the effect of off-farm work on the scale and technical efficiency of the farm business in the production of traditional commodities (farm-level perspective); second, the impact of off-farm work on scale and technical efficiency at the household level, considering both... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management; Productivity Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/9904 |
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| Nehring, Richard F.; Martin, Andrew; Fernandez-Cornejo, Jorge; Hallahan, Charles B.; Vialou, Alexandre; Wechsler, Seth James; Grube, Arthur. |
| This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, conditioning or accounting for HT corn with other important drivers of corn herbicide use: HT soy, corn output price, glyphoste price, nonherbicide glyponsate price, and percentage of continuous corn and low-till corn. However, we find a positive and significant impact of HT corn on herbicide use in selected states, using regional interaction terms. We use econometric techniques to avoid spurious regression results. Other preliminary runs indicated that the results hold when running the US and regional interactions... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: HT-corn; Herbicides; Weed resistance; Glyphosate; Corn; Environmental Economics and Policy; Farm Management; Production Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/103369 |
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| Ball, V. Eldon; Fare, Rolf; Grosskopf, Shawna; Zaim, O.; Nehring, Richard F.. |
| This paper starts with the basic premise that the conventional measures of productivity growth, which ignore joint production of good and bad outputs, are biased. We then construct an alternative productivity growth measure using activity analysis. An application to U.S. agriculture demonstrates its usefulness. More specifically, we show that the Tornqvist index of productivity is biased upward when production of undesirable outputs or "bads" is increasing. Conversely, this same measure of productivity is biased downward when externalities in production are decreasing. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Productivity Analysis. |
| Ano: 2001 |
URL: http://purl.umn.edu/20442 |
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| Morrison Paul, Catherine J.; Nehring, Richard F.; Banker, David E.; Breneman, Vincent E.. |
| Given recent concerns expressed about the structural transformation of agriculture and the health of the family farm this study provides a measure of the economic health of small and large farms at the state level. We use nonparametric frontier methods to measure and explain changes in the efficiency, productivity, and technological change of U.S. farms, employing USDAs annual 1996 to 1999 surveys of farms. Our results for the corn and cotton states analyzed identify particularly weak economic performance of small farms in Iowa, Louisiana, Oklahoma, and Wisconsin and of large farms in Missouri, Oklahoma, and South Carolina. Our results also indicate strong performance of small farms in several states. Thus, these results give policy makers a more detailed... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Productivity Analysis; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2001 |
URL: http://purl.umn.edu/20679 |
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| Registros recuperados: 42 | |
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