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Animals’ Health Control Efficiency in Northwest Portugal: A Two-stage DEA Approach AgEcon
Costa, Leonardo; Oude Lansink, Alfons G.J.M.; Silva, Elvira.
A two-stage approach is employed to analyze the efficiency of cooperatives responsible for ruminants’ disease control (OPP) at the farm level in Northwest Portugal. In the first stage, Data Envelopment Analysis (DEA) is used to estimate and decompose input-based overall inefficiency for each OPP. The input-based inefficiency measures are generated using the directional input distance function. In the second stage, the inefficiency estimates are regressed on environmental and organizational factors in order to explain efficiency differentials. Despite substantial environmental differences, the empirical results indicate that most cooperatives can reduce costs by improving scale efficiency and pure technical efficiency.
Tipo: Conference Paper or Presentation Palavras-chave: Input directional distance function; Bootstrapping; Economic efficiency; Animal health services.; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/58000
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AJAE Appendix: Dynamic Efficiency Measurement: Theory and Application AgEcon
Stefanou, Spiro E.; Silva, Elvira.
The material contained herein is supplementary to the article named in the title and published in the American Journal of Agricultural Economics, May 2007, Volume 89, Issue 2.
Tipo: Journal Article Palavras-chave: Productivity Analysis.
Ano: 2007 URL: http://purl.umn.edu/7418
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A NONPARAMETRIC APPROACH TO SHORT-RUN PRODUCTION ANALYSIS IN A DYNAMIC CONTEXT AgEcon
Silva, Elvira.
A nonparametric approach to short-run production analysis from a cost and profit perspectives is developed in the context of an adjustment-cost model. The adjustment-cost hypothesis is incorporated in the theoretical framework in the form of the properties of the firm's technology with respect to the quasi-fixed factors. Nonparametric tests for consistency of a data series with short-run cost minimization and profit maximization are developed and the empirical implementation of these tests to U.S. agriculture is presented. The empirical evidence does not refute that agricultural producers behave collectively as if they were a short-run cost minimizing and profit maximizing firm.
Tipo: Conference Paper or Presentation Palavras-chave: Nonparametric revealed-preference approach; Short-run production analysis; Long-run adjustment; Adjustment cost.; Productivity Analysis; Research Methods/ Statistical Methods.
Ano: 1999 URL: http://purl.umn.edu/21608
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Dynamic Efficiency Analysis using a Directional Distance Function AgEcon
Oude Lansink, Alfons G.J.M.; Silva, Elvira.
Input-based dynamic efficiency measures are derived from an adjustment-cost directional distance function approach. A dynamic input directional distance function can be generated from an adjustment-cost technology where the dynamics are explicitly incorporated in the form of the properties of the input requirement sets with respect to the quasi-fixed factors. The properties of the dynamic input directional distance function are inherited from the properties of the technology. The efficiency measures are then applied to a panel data set of Dutch horticulture firms over the period 1991-1995.
Tipo: Conference Paper or Presentation Palavras-chave: Productivity Analysis.
Ano: 2006 URL: http://purl.umn.edu/25771
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