FUZZY DEA EFFICIENCY RANKING MODEL

摘要

In previous model of Fuzzy DEA presented by scholars, efficiency value of DMU (decision-making unit) will not exceed 1 because the efficiency value derived is expressed in fuzzy interval and the upper bound is confined to 1. As the efficiency interval is restricted from 0 to 1, error may occur during evaluation process for a DMU. The paper attempts to lift the restriction of upper bound of efficiency value interval as 1 to allow efficiency value potentially exceeding 1 and thus restoring the efficiency value back to original interval. Accordingly, revised Fuzzy DEA model will allow performance evaluation to be more fair and accurate.