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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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| 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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| 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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| Ahearn, Mary Clare; Yee, Jet; Ball, V. Eldon; Nehring, Richard F.. |
| Increased productivity is a key to a healthy and thriving economy. Consequently, the trend in productivity, economywide, is one of the most closely watched of our common economic performance indicators. Agriculture, in particular, has been a very successful sector of the U.S. economy in terms of productivity growth. The U.S. farm sector has provided an abundance of output while using inputs efficiently. Agricultural productivity growth has been an important source of U.S. economic growth throughout the century, but the years since 1940 have seen an even faster growth in agricultural productivity. The annual average increase in productivity from 1948 to 1994 was 1.94 percent. This reflects an annual growth in output of 1.88 percent per year and an actual... |
| Tipo: Report |
Palavras-chave: Productivity; Efficiency; Agricultural production; Outputs; Inputs; Productivity Analysis. |
| Ano: 1998 |
URL: http://purl.umn.edu/33687 |
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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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| 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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| 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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| Registros recuperados: 42 | |
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