Negative data in DEA: a directional distance approach applied to bank branches

This paper is drawn from the use of data envelopment analysis (DEA) in helping a Portuguese bank to manage the performance of its branches. The bank wanted to set targets for the branches on such variables as growth in number of clients, growth in funds deposited and so on. Such variables can take p...

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Detalhes bibliográficos
Autor principal: Portela, M. C. A. S. (author)
Outros Autores: Thanassoulis, E. (author), Simpson, G. (author)
Formato: article
Idioma:eng
Publicado em: 2011
Assuntos:
Texto completo:http://hdl.handle.net/10400.14/5355
País:Portugal
Oai:oai:repositorio.ucp.pt:10400.14/5355
Descrição
Resumo:This paper is drawn from the use of data envelopment analysis (DEA) in helping a Portuguese bank to manage the performance of its branches. The bank wanted to set targets for the branches on such variables as growth in number of clients, growth in funds deposited and so on. Such variables can take positive and negative values but apart from some exceptions, traditional DEA models have hitherto been restricted to non-negative data. We report on the development of a model to handle unrestricted data in a DEA framework and illustrate the use of this model on data from the bank concerned.