Title:	A non-archimedean dea model to assess group comparisons.
Authors:	SOUZA, G. da S. e GOMES, E. G.
Affiliation:	GERALDO DA SILVA E SOUZA, SGI; ELIANE GONCALVES GOMES, SGI.
Date Issued:	2016
Citation:	Pesquisa Operacional, Vol. 36(3), 2016.
Description:	We consider the use of the non-Archimedean infinitesimal epsilon in DEA-CCR models. The application of interest is defined by the performance measure of the Brazilian Agricultural Research Corporation research centers. We characterize an assurance region for the non-Archimedean element and suggest a value for it. Types of DMUs are compared using fractional regression models and quasi maximum likelihood inference. We conclude that the research centers aimed at studying specific agricultural products are dominant. The classic DEA-CCR performance measures and the solution provided by non-Archimedeanmodel have Spearman correlation over 90%.
Keywords:	Non-zero weights Fractional regression
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado / Embrapa Unidades Centrais (AI-SEDE)