Journal
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
Volume 174, Issue 2, Pages 1076-1086Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejor.2005.02.061
Keywords
DEA; efficiency; productivity; index aggregation
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In this paper we extend the work of [Fare and Zelenyuk, 2003. On aggregate farrell efficiency scores. European Journal of Operational Research 146(3) 615-620] to find a theoretically justified method of aggregating Malmquist Productivity Indexes over individual decision making units (firms, countries, etc.) into a group Malmquist Productivity Index. We also consider the aggregation of decomposed parts of the Malmquist Productivity Index to obtain a decomposition of the Malmquist Productivity Index for a particular group. (c) 2005 Elsevier B.V. All rights reserved.
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