Malmquist Productivity Index by Extended VIKOR Method Using Interval Numbers

Table 5

A sample of filled up questionnaire.

Question	Very low	Low	Medium	High	Very high
(1) What is the importance of the incomes criterion in a productivity performance of bank?		✓
(2) What is the importance of the loans criterion in a productivity performance of bank?			✓
(3) What is the importance of the deposits criterion in a productivity performance of bank?				✓
(4) What is the importance of the number of customers criterion in a productivity performance of bank?		✓
(5) What is the importance of the number of personnel criterion in a productivity performance of bank?			✓
(6) What is the importance of the total costs criterion in a productivity performance of bank?		✓