✦ LIBER ✦

Power Relations and Group Aggregation in the Multiplicative AHP and SMART

✍ Scribed by J. BARZILAI; F. A. LOOTSMA

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 178 KB
Volume: 6
Category: Article
ISSN: 1057-9214
DOI: 10.1002/(sici)1099-1360(199705)6:3<155::aid-mcda131>3.0.co;2-4

No coin nor oath required. For personal study only.

✦ Synopsis

The relative power of the members in a group of decision makers can be incorporated in the Multiplicative AHP via power coefficients in the logarithmic least squares whereby we analyse the pairwise comparison matrices. When each decision maker judges every pair of alternatives under each of the criteria, aggregation over the criteria and over the decision makers proceeds via a sequence of geometric-mean calculations which can be carried out in any order, at least with predetermined criterion weights and power coefficients. Hence, since we preserve the rank order of the alternatives, we avoid a deficiency of the original AHP. We also consider SMART, an additive method which is logarithmically related to the Multiplicative AHP so that power relations can easily be incorporated in it. Finally, in order to illustrate the proposed model, we analyse a generalized version of the well-known example of Belton and Gear as well as the power relations between member countries of the European Community. &

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