DEA scores and AHP pairwise comparison values. Since a DEA score is between
0 and 1 and the scale by Saaty (1980) for AHP analysis is between 1 and 9
(and the score is 1/9 to 1), we let DEA score of 1 equals to AHP score of 1, and
divide DEA score of less than one into eight equivalent ranges, as shown in
Table I. After the transformation of DEA results into AHP pairwise comparison
values, w21 can be calculated by conventional AHP method.