The Core of Consistency in AHP-Group Decision Making

J. M. Moreno-Jiménez (), J. Aguarón and M. T. Escobar
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J. M. Moreno-Jiménez: Facultad de Económicas
J. Aguarón: Facultad de Económicas
M. T. Escobar: Facultad de Económicas

Group Decision and Negotiation, 2008, vol. 17, issue 3, No 7, 249-265

Abstract: Abstract This paper presents a new tool, the Consistency Consensus Matrix, designed to encourage the search for consensus in group decision making when using the Analytic Hierarchy Process (AHP). The procedure exploits one of the characteristics of AHP: the possibility of measuring consistency in judgement elicitation. Using two other tools, Preference Structures and Stability Intervals, we derive the Consistency Consensus Matrix that corresponds to the actor’s core of consistency. The performance analysis of the preference structure obtained from this matrix provides us with valuable information in search for knowledge. The new tool is illustrated by means of a case study adapted from a real-life experiment in e-democracy developed for the City Council of Zaragoza (Spain).

Keywords: Group decision making; AHP; Consistency Consensus Matrix; Knowledge extraction; E-Democracy (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (13)

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DOI: 10.1007/s10726-007-9072-z

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