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| Bond, Craig A.; Farzin, Y. Hossein. |
| This paper uses a directional output distance function to estimate a multi-output production frontier for a sample of experimental plots grown for the Sustainable Agriculture Farming Systems project at the University of California, Davis. Cross-sectional technical efficiency indices are estimated that take into account two proxies for undesirable output: number of trips across a field as a proxy for air pollution and/or soil erosion, and pints of pesticides applied to account for potential leaching and/or health risks. Shadow price estimates based on marginal rates of transformation ranged from $8-$21 for trips, while shadow prices for pints of pesticides averaged $23-$27. |
| Tipo: Journal Article |
Palavras-chave: Directional distance function; Environmental efficiency index; Shadow price; Environmental Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/8642 |
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| Chen, Po-Chi; Chang, Ching-Cheng; Hsu, Shih-Shun. |
| This paper addresses the question how team production promotes efficiency of a firm when some inputs can be rewarded on the basis of outputs but some cannot because they are shared among outputs and non-separable. A multi-activity DEA model with variable returns to scale is proposed to provide information on the efficiency performance for organizations with inputs shared among several closely related activities. The model is applied to study the case of 279 farmers' associations in Taiwan. The result suggests that it is important to improve the efficiency of the non-profit oriented activities to improve their overall performances. Three out of four departments of TFAs can gain from economies of scale through expansion, while the remaining one gains... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Multi-activity DEA; Shared inputs; Efficiency measure; Directional distance function; Productivity Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/9781 |
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