Some ranking irregularities when the electre method is used for decision-making

Document Type

Conference Proceeding

Publication Date

12-1-2004

Abstract

The ELECTRE II and III methods enjoy a wide acceptance in solving multi-criteria decision-making (MCDM) problems. Our research has revealed that there are some compelling reasons to doubt the correctness of the proposed rankings when the ELECTRE II and III methods are used. In a typical test we first used these methods to determine the best alternative for a given MCDM problem. Next we randomly replaced a non-optimal alternative by a worse one and repeated the calculations without changing any of the other data. Our computational tests revealed that sometimes the ELECTRE II and III methods might change the indication of the best alternative. Although such rank irregularity is well known for the AHP approach, it is the very first time that they are reported to occur when the ELECTRE approach is used. These methods are also evaluated in terms of other ranking tests and they failed them as well.

Publication Source (Journal or Book title)

IIE Annual Conference and Exhibition 2004

First Page

583

Last Page

588

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