Data/hora: 23/09/2024 12:17:54

Biblioteca(s): 	Embrapa Territorial; Embrapa Unidades Centrais.	
Data corrente: 	23/04/2009	
Data da última atualização: 	08/07/2010	
Autoria: 	GOMES, E. G.; MELLO, J. C. C. B. S. de; SOUZA, G. da S. e; MEZA, L. A.; MANGABEIRA, J. A. de C.	
Afiliação: 	ELIANE GONCALVES GOMES, SGE; João Carlos Correia Baptista Soares de Mello, CNPq; GERALDO DA SILVA E SOUZA, SGE; Lidia Angulo Meza, CNPq; JOAO ALFREDO DE CARVALHO MANGABEIRA, CNPM.	
Título: 	Efficiency and sustainability assessment for a group of farmers in the Brazilian Amazon.	
Ano de publicação: 	2009	
Fonte/Imprenta: 	Annals of Operations Research	
Volume: 	v. 169	
Páginas: 	167-181	
ISSN: 	0254-5330	
Idioma: 	Inglês	
Notas: 	0254-5330 (Print) 1572-9338 (Online)	
Conteúdo: 	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 of family farms is analysed here (variables: farmed area, work force, and production). As agricultural sustainability depends on the maintenance of systems of production for long periods of time, the models were run for the years of 1986 and 2002. Tiered DEA models were used to group farmers in sustainability categories. Non-parametric regression models were used to identify the factors affecting the efficiency measurements. All the results indicate that the majority of the farmers increased their efficiency along the time. These improvements may support the existence of sustainability.	
Palavras-Chave: 	Data envelopment analysis; Iso - efficiency tiers; Regression.	
Thesaurus Nal: 	family farms.	
Categoria do assunto: 	--
B Sociologia Rural	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/17391/1/Efficiency-and-sustainability-assessment-for-a-group.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/35246/1/fulltext2.pdf	
Registro original: 	Embrapa Unidades Centrais (AI-SEDE)	
Exemplares: 	CNPM - (2369-1) - UPC - AP - PP - 09/062 - AP - 2009.062 - DIS
AI-SEDE - (47074-1) - UPC - AP - DD -  - SGE -  - DIS