Title:	Potential improvement of agricultural output for major producers based on DEA efficiency measurements.
Authors:	SOUZA, G. da S. e MOREIRA, T. B. S. GOMES, E. G.
Affiliation:	GERALDO DA SILVA E SOUZA, SGE; TITO BELCHIOR SILVA MOREIRA, UNIVERSIDADE CATÓLICA DE BRASÍLIA; ELIANE GONCALVES GOMES, SGE.
Date Issued:	2011
Citation:	PESQUISA OPERACIONAL. v.31, n.1, p. 79-93, 2011.
Description:	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.
NAL Thesaurus:	Agriculture
Keywords:	DEA Food crisis Efficiency
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado / Embrapa Unidades Centrais (AI-SEDE)