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Published in: Decisions in Economics and Finance 2/2020

05-11-2020

Interactive consistency correction in the analytic hierarchy process to preserve ranks

Authors: Alessio Ishizaka, Sajid Siraj

Published in: Decisions in Economics and Finance | Issue 2/2020

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Abstract

The analytic hierarchy process is a widely used multi-criteria decision-making method that involves the construction of pairwise comparison matrices. To infer a decision, a consistent or near-consistent matrix is desired, and therefore, several methods have been developed to control or improve the overall consistency of the matrix. However, controlling the overall consistency does not necessarily prevent having strong local inconsistencies. Local inconsistencies are local distortions which can lead to rank reversal when a new alternative is added or deleted. To address this problem, we propose an algorithm for controlling the inconsistency during the construction of the pairwise comparison matrix. The proposed algorithm assists decision makers whilst entering their judgments and does not allow strong local inconsistencies. This algorithm is based on the transitivity rule and has been verified through statistical simulations. Appropriate thresholds of acceptable evaluations have been inferred from these simulations. We demonstrate that the proposed algorithm is a helpful decision aid to decision makers when entering pairwise comparison judgments.
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Metadata
Title
Interactive consistency correction in the analytic hierarchy process to preserve ranks
Authors
Alessio Ishizaka
Sajid Siraj
Publication date
05-11-2020
Publisher
Springer International Publishing
Published in
Decisions in Economics and Finance / Issue 2/2020
Print ISSN: 1593-8883
Electronic ISSN: 1129-6569
DOI
https://doi.org/10.1007/s10203-020-00309-4

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