On a Consensus Measure in a Group Multi-Criteria Decision Making Problem

Michele Fedrizzi

No 1009, DISA Working Papers from Department of Computer and Management Sciences, University of Trento, Italy

Abstract: A method for consensus measuring in a group decision problem is presented for the multiple criteria case. The decision process is supposed to be carried out according to Saaty's Analytic Hierarchy Process, and hence using pairwise comparison among the alternatives. Using a suitable distance between the experts' judgements, a scale transformation is proposed which allows a fuzzy interpretation of the problem and the definition of a consensus measure by means of fuzzy tools as linguistic quantifiers. Sufficient conditions on the expert's judgements are finally presented, which guarantee any a priori fixed consensus level to be reached.

Keywords: group decision making; multiple criteria; degree of consensus; fuzzy preferences (search for similar items in EconPapers)
JEL-codes: C63 D70 D81 (search for similar items in EconPapers)
Pages: 13 pages
Date: 2010-12, Revised 2010-12-22
New Economics Papers: this item is included in nep-cdm
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