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A geometrical approach for fuzzy DEA frontiers. Author(s): BIONDI NETO, L.; MELLO, J. C. C. B. S. de; MEZA, L. A.; GOMES, E. G. Interval DEA frontiers are here used in situation where one input or output is subject to uncertainty in its measurement and is presented as an interval data. We built an efficient frontier without an... ... Repository: BDPA Publication year: 2009
Improving agricultural economic efficiency in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this article, we use Brazilian census data (1995/1996 and 2006) to model agricultural production at the state level in Brazil. Cost-efficiency measurements are computed using data envelopment analy... ... Repository: BDPA Publication year: 2015
Potential improvement of agricultural output for major producers based on DEA efficiency measurements. Author(s): SOUZA, G. da S. e; MOREIRA, T. B. S.; GOMES, E. G. In this article we perform production efficiency analysis for the 40 countries with largest value added by agricultural sector in 2005. Under the assumption of a nonparametric frontier and production... ... Repository: BDPA Publication year: 2011
A parametric approach for evaluating the technical efficiency of the brazilian agricultural sector. Author(s): SOUZA, G. da S. e; GOMES, E. G.; GAZZOLA, R.; WANDER, A. E.; SOUZA, R. da S. In this study we assessed the technical efficiency of the 27 Brazilian states in the years 1995/96 and 2006. The ata on land and labor were otained from the agricultural census of the two considered p... ... Repository: BDPA Publication year: 2009
Scale of operation, allocative inefficiencies and separability of inputs and outputs in agricultural research. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this article we consider some properties of concern for research production at Embrapa. We apply statistical tests to address questions related to the scale of operation, the presence of allocative... ... Repository: BDPA Publication year: 2013
Scale of operation, allocative inefficiencies and separability of inputs and outputs in agricultural research: Embrapa case study. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this article we consider some properties of concern for research production at Embrapa. We address questions related to statistical tests for the scale of operation, the presence of allocative inef... ... Repository: BDPA Publication year: 2011
Eficiência na gestão de empréstimos para retenção de matrizes na planície pantaneira. Author(s): ABREU, U. G. P. de; MELLO, J. C. B. S. de; GOMES, E. G.; SANTOS, S. A.; CATTO, D. F. Este artigo apresenta uma proposta para avaliar a eficiência e a produtividade de 11 fazendas do Pantanal matogrossense, por meio de modelos DEA. Estas fazendas contrataram empréstimo do Fundo Constit... ... Repository: BDPA Publication year: 2009
Determinantes da eficiência técnica dos produtores de leite da mesorregião da Zona da Mata - MG. Author(s): TRAVASSOS, G. F.; SOBREIRA, D. B.; GOMES, A. P.; CARNEIRO, A. V. Repository: BDPA Publication year: 2016
Análise de desempenho de sistemas de produção modais de pecuária de cria no Brasil. Author(s): MELLO, J. C. C. B. S. de; GOMES, E. G.; ABREU, U. G. P. de; CARVALHO, T. B. de; ZEN, S. de Neste artigo propõe-se analisar comparativamente o desempenho de sistemas de produção modais de pecuária extensiva de corte na fase de cria em 21 municípios brasileiros. A cria é a fase da atividade q... ... Repository: BDPA Publication year: 2013
Uso de modelos DEA em agricultura: revisão da literatura. Author(s): GOMES, E. G. A rápida evolução da modelagem DEA, tanto em seus aspectos teóricos quanto em sua aplicação a casos de estudo reais, pode ser comprovada pela grande quantidade de artigos publicados. Uma das aplicaçõe... ... Repository: BDPA Publication year: 2008

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