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| Graham, Mary. |
| Technical efficiency has been widely studied in the literature, but in its pursuit, many of the inputs used can impact on the environment. Environmental effects can be modelled as undesirable output or, as has been the case in more recent studies, as conventional inputs. This paper examines the concept of environmental efficiency and how it can be used to evaluate the performance of Australian dairy farming, using nitrogen surplus, arising from excessive applications of fertilizer, as a detrimental input. Farming promotes the image of clean and green production and if this image is to be maintained, there is a need to ensure activities are environmentally friendly |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Efficiency; Detrimental inputs; Nitrogen surplus; DEA; Environmental Economics and Policy; Farm Management. |
| Ano: 2004 |
URL: http://purl.umn.edu/58450 |
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| Graham, Mary; Fraser, Iain. |
| Data Envelope Analysis, (DEA), a linear programming technique, provides a more consistent measure of efficiency than the commonly cited partial measures of farm efficiency. It yields a relative measure of efficiency and identifies inputs or outputs that are under utilized. In this paper, DEA is used to assess the technical efficiency of a sample of dairy farms across all dairy regions in Australia. Regions vary in size and scale of operation and are examined to see the relationship between farm size and technical efficiency, and to see if there is justification in the move towards bigger dairy production units than currently exist, given their factor mix. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management; Production Economics; Productivity Analysis. |
| Ano: 2003 |
URL: http://purl.umn.edu/57878 |
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| Graham, Mary. |
| Agricultural production, by its nature, impacts both positively and negatively on the environment. Impacts can be point source or diffuse; however all should be considered in performance measurement. To estimate potential environmental impacts from the use of nitrogen fertilizer, a biophysical model of dairy grazing systems, DairyMod, is used to simulate individual farming practices and determine the likely extent of leaching and run-off from each farm. Although not the only environmental impacts of farming, leaching and run-off are two variables that can be measured and combined with other marketed inputs to determine farm performance. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Environmental Economics and Policy; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6773 |
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