Table 41.

Questionnaire about the importance of each criterion.

Traditional criteria	Not at all important	Slightly important	Moderately important	Very important	Extremely important
Price	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Quality	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Delivery time	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Warranties & obligations	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Payment terms	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Risk factor	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Position in the sector	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Technology	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Geographical location	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Service	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Flexibility	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Just-in-time delivery	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Minimum order quantity	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Technical capacity	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Production capacity	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Experience	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Problem solving ability	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Environmental criteria	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Ecological materials	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green product	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Pollution control	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green image	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green competencies	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Environment management	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green purchasing	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Life cycle assessment	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
R&D green products	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Corporate social responsibility	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green innovation	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Hazardous substance management	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Environment protection	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Green design	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5
Availability of “clean” technologies	☐ 1	☐ 2	☐ 3	☐ 4	☐ 5