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Xu, Z. (2000). On consistency of the weighted geometric mean complex judgement matrix in AHP. European Journal of Operational Research, 126, 683–687. 
Added by: Klaus D. Goepel (12 Jun 2019 06:48:47 Asia/Singapore)   
Resource type: Journal Article
BibTeX citation key: Xu2000
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Categories: General
Keywords: consistency, group aggregation, group decision, group decision making
Creators: Xu
Collection: European Journal of Operational Research
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The weighted geometric mean method (WGMM) is the most common group preference aggregation method in the Analytic Hierarchy Process. This paper reports on research concerning the consistency of WGMM and proves that the weighted geometric mean complex judgement matrix (WGMCJM) is of acceptable consistency. In Saaty's (T.L. Saaty, The Analytic Hierarchy Process, McGraw-Hill, New York, 1980) opinion, a consistency ratio (CR) of 0.1 or less is acceptable under the condition that all judgement matrices given by experts for the same problem of decision-making are of acceptable consistency. Accordingly, a theoretic basis has been developed for the application of the WGMM in group decision making.
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