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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 observations satisfying a statistical model including both random and inefficiency errors, we estimate an agricultural production function using DEA measures of efficiency with output orientation and variable returns to scale. We found evidence that the set of countries investigated could increase their total value added by agricultural sector for at least 53.9% without increasing input usage with the prevailing technology. This result has a direct impact on issues related to the recent food crisis. |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Food crisis; Efficiency; DEA; Agriculture. |
Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/888792 |
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PEGORARE, A. B.; MORAES, P. M. de; COSTA, R. B. da; ABREU, U. G. P. de; MENDES, D. R. F.; MOREIRA, T. B. S.; CUNHA, G. H. de; CONSTANTINO, M.. |
The aim of this paper is to present novel variables in the Brazilian Central-West Region to evaluate the spatial dependence of the Gross Domestic Product of agriculture and livestock (GDPagri) and the Gross Value of Production (GVP) on the main agricultural and livestock commodities in order to identify clusters of high and low spatial correlations. Data on the municipalities of Mato Grosso do Sul State (MS) between 2000 and 2010 is used. Initially, a spatial exploratory data analysis is performed to verify the hypothesis of global spatial randomness of the evolution of GDPagri and GVP, with Moran's I statistic as the instrumental measurement. In addition, econometric and spatial models were utilized. The results of the three spatial models used indicated... |
Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Economia agricola; Gado de corte; Beef cattle; Agribusiness. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1090379 |
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