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Efficiency modeling, an important factor in the development of sheep and goat production in a semiarid region. Author(s): ABREU, U. G. P. de; LIMA, L. D. de; ALBUQUERQUE, F. H. M. A. R. de; SOUZA, J. D. F. de The paper aims to use the Data Envelopment Analysis (DEA) approach to evaluate the performance of sheep and goat production systems in the semi-arid region in Brazil. By applying a questionnaire with... ... Repository: BDPA Publication year: 2022
Modelling conditional measures of efficiency to assess the influence of covariates on agricultural production in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G. ABSTRACT: Brazilian agriculture is productive, efficient, and profitable for a few farmers. However, due to the restricted access to technology, the major part of the rural producers are marginalized... ... Repository: BDPA Publication year: 2022
Probabilistic measures of efficiency and the influence of contextual variables in nonparametric production models: an application to agricultural research in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G. In a research institution it is important to identify which management practices have influence on production efficiency. In this paper we assess the statistical significance of contextual variables t... ... Repository: BDPA Publication year: 2010
Probabilistic measures of efficiency and the influence of contextual variables in nonparametric production models: an application to agricultural research evaluation in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G.; STAUB, R. B. Repository: BDPA Publication year: 2009
Rice yield estimation based on weather conditions and on technological level of production systems in Brazil. Author(s): MONTEIRO, J. E. B. de A.; AZEVEDO, L. da C.; ASSAD, E. D.; SENTELHAS, P. C. The objective of this work was to evaluate an estimation system for rice yield in Brazil, based on simple agrometeorological models and on the technological level of production systems. This estimatio... ... Repository: BDPA Publication year: 2013
Effects of education and investment in research in agricultural production in Brazil. Author(s): GOMES, E. G.; SOUZA, G. da S. e; GAZZOLA, R.; AVILA, A. F. D. We use census data (1996 and 2006) to model the agricultural production at state level in Brazil. Cost efficiency measurements are computed using data envelopment analysis and the response is assessed... ... Repository: BDPA Publication year: 2010
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
The dynamism of brazilian agriculture. Author(s): CONTINI, E.; GASQUES, J. G.; ALVES, E. R. de A.; BASTOS, E. T. The Brazilian industrialization process was fundamental to modernize agriculture, creating in cities the demand for food and other inputs. Under this process, three agriculture policy instruments were... ... Repository: BDPA Publication year: 2010
Efficiency and sustainability assessment for a group of farmers in the Brazilian Amazon. Author(s): GOMES, E. G.; MELLO, J. C. C. B. S. de; SOUZA, G. da S. e; MEZA, L. A.; MANGABEIRA, J. A. de C. The aim of this paper is to use DEA models to evaluate sustainability in agriculture. Several variables are taken into account and the resulting efficiency is measured by comparison. The performance o... ... Repository: BDPA Publication year: 2009
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

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