Aggregating Individual Judgments and Priorities with the Analytic Hierarchy Process

Abstract

The Analytic Hierarchy Process (AHP) is often used in group settings where group members engage in discussion and arrive at consensus judgments. Alternatively, each member of the group can make individual judgments. This paper considers alternative ways to aggregate individual judgments. We show why geometric, rather than arithmetic means be usedi We also consider that the method used to aggregate priorities or judgments depends on the nature of the group.