Data/hora: 03/06/2024 16:34:24

Provedor de dados: 	Research in Agricultural & Applied Economics (AgEcon Searh)	
País: 	United States	
Título: 	Polarity in DEA Models	
Autores: 	Agrell,   Per J.; Bogetoft,   Peter; Tind,   Jorgen.	
Data: 	2005-11-18	
Ano: 	2000	
Palavras-chave: 	Data Envelopment Analysis; Polarity; Research Methods/ Statistical Methods.	
Resumo: 	This article discusses models in data envelopment analysis (DEA) relaxing the standard convexity assumptions. The basic model treats mutually incomparable pairs of sets to be generated by a procedure proposed earlier. Each pair consists of a consumption set and a production set of feasible input-output combinations. Two fundamental operations by the procedure are based on intersection and convex hull generation in the input-output space. A polarity analysis is performed which, subject to the usual assumptions about free disposability and nonnegativity, appears fruitful to do in the framework of blocking and antiblocking sets. It is shown how this leads to an interchange of the above operations extending some classical results from convex analysis. The last part of the paper presents a pair of linear programming models calculating a Farrell productivity index based on a preceeding application of the procedure. This is a generalization of the classical linear programming models in DEA subject to standard assumptions about convexity.	
Tipo: 	Working or Discussion Paper	
Idioma: 	Inglês	
Identificador: 	19151

http://purl.umn.edu/24188	
Editor: 	AgEcon Search	
Relação: 	Royal Veterinary and Agricultural University&gt;Food and Resource Economic Institute&gt;Unit of Economics Working papers

Unit of Economics Working Paper 2000/4	
Formato: 	20

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