A recent paper has focused awareness on group aggregation procedures in the AHP, showing that geometric mean aggregation violates the desirable social choice axiom of Pareto optimality. We show that this violation can be attributed to the representation used to model the group decision process, thereby questioning the legitimacy of the Pareto optimality axiom. We furthermore propose a geometric mean group aggregation procedure which satisfies all the social choice axioms suggested.
|Number of pages||8|
|Journal||European Journal of Operational Research|
|Publication status||Published - 24 Jan 1997|
- Analytic hierarchy process
- Decision analysis
- Group aggregation
- Pareto optimality