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Efficiency characterizations in different DEA models

1988; Elsevier BV; Volume: 22; Issue: 6 Linguagem: Inglês

10.1016/0038-0121(88)90007-9

1873-6041

TaeSik Ahn, A. Charnes, W. W. Cooper,

Fiscal Policy and Economic Growth

Relations of efficiency and non-efficiency for the same sets of DMUs (Decision Making Units) are developed for the Charnes, Cooper and Rhodes (CCR) and Barker, Charnes, Cooper (BCC) ratio models, as well as DEA Additive and Multiplicative Models. Surprisingly, additively efficient DMUs are not necessarily multiplicatively efficient. A geometric "stretching" phenomenon is identified for the latter case.