Print version ISSN 0101-7438
SENRA, Luis Felipe Aragão de Castro; NANCI, Luiz Cesar; MELLO, João Carlos Correia Baptista Soares de and MEZA, Lidia Angulo. Estudo sobre métodos de seleção de variáveis em DEA. Pesqui. Oper. [online]. 2007, vol.27, n.2, pp. 191-207. ISSN 0101-7438. http://dx.doi.org/10.1590/S0101-74382007000200001.
One of the main issues in DEA modeling is the variables choice. This may have conflictive objectives, like increasing the mean efficiency or maximizing the model ranking capability - a DEA classic fragility. In this paper, we compare four variable selection methods, focused on DMUs sorting. These methods are applied to a real situation of assessing the efficiency of third-party logistics in the activity of newspaper home delivery, in Rio de Janeiro.
Keywords : DEA; variable selection; ranking.