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2- DEA bibliography

In 1995, the website www.DEAzone was implemented with the hope of including the full set of DEA resources under a single “umbrella,” to be accessed by interested researchers and practitioners. Since then, our DEA bibliography has been regularly updated with the kind help of its many users.
Several other bibliographies have also been reported in the literature, including those of Tavares [3], Emrouznejad and Thanassoulis [4-6], Seiford [7-8] and Gattoufi et al. [9-10]. In compiling the current bibliography, the authors expanded boundaries by searching a variety of both traditional and newer databases including Science Direct (www.sciencedirect.com), EBSCO (www.ebsco.com), Google Scholar (http://scholar.google.com), JSTOR (http://uk.jstor.org/) and Pro-Quest (http://proquest.umi.com).
The evolution of DEA as a worldwide accepted OR/MS tool has been tracked here in terms of the increases of both publications and authors. It is apparent from our analysis of DEA’s keywords/subject matter, that the method is emerging as a significant and essential tool in a large number of diverse management science fields.
Our extensive literature searches have identified more than 4000 research articles published in journals or book chapters. Books and papers published in/as conference proceedings were also included; but, articles presented at various events and working/research papers published as internal documents, were not considered. To provide some sense of the field’s ongoing expansion, had we included unpublished dissertations, working/research manuscripts, and papers presented at conferences/ events, the bibliography count would have exceeded 7000 entries!
A classification of qualified articles by year reveals that a large percentage of the research pool has been published in the last five years, with 2004 being the peak year for articles published in refereed journals.
Banking, education (including higher education), health care, and hospital efficiency were found to be the most popular application areas. An overview of the DEA bibliography database through selected summary statistics indicates that 89% of publications are in the form of journal articles, with 9.4% appearing as book chapters or proceedings, and 1.6% as books themselves.
In total, 2500 distinct authors have been identified, with the average number of authors per publication being nearly two. Based on approx. 75% of the data base, about 2000 distinct keywords were found, with an average of 3.5 per publication.
The next section provides a series of selected statistics involving the papers, keywords, journals, and authors of our DEA database.

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