Manipulation of Individual Judgments in the Quantitative Pairwise Comparisons Method

Michał Strada () and Konrad Kułakowski
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Michał Strada: Aptiv Services Poland S.A., ul. Powstańców Wielkopolskich 13 D-E, 30-707 Kraków, Poland
Konrad Kułakowski: Department of Applied Computer Science, AGH University of Krakow, al Mickiewicza 30, 30-059 Kraków, Poland

International Journal of Information Technology & Decision Making (IJITDM), 2025, vol. 24, issue 05, 1539-1566

Abstract: Decision-making methods very often use the technique of comparing alternatives in pairs. In this approach, experts are asked to compare different options, and then a quantitative ranking is created from the results obtained. It is commonly believed that experts (decision-makers) are honest in their judgments. In our work, we consider a scenario in which experts are vulnerable to bribery. For this purpose, we define a framework that allows us to determine the intended manipulation and present three algorithms for achieving the intended goal. Analyzing these algorithms may provide clues to help defend against such attacks.

Keywords: Pairwise comparisons; analytic hierarchy process; decision-making method; strategic judgment manipulation; bribery of decision-maker; micro-bribery (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0219622025500142

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