Construct | Item |
Green purchasing (Zhu et al., 2008a) | Eco labeling of products. |
Cooperation with suppliers for environmental objectives. | |
Environmental audit of suppliers’ internal management. | |
Second-tier supplier environmentally friendly practice evaluation. | |
Eco-design (Zhu et al., 2008a) | Design of products for reduced consumption of material/energy. |
Design of products for reuse, recycle, recovery of material and/or component parts. | |
Design of products to avoid or reduce use of hazardous products and/or their manufacturing process. | |
SMEs performance (Sadiku-dushi et al., 2019) | My firm is usually satisfied with sale growth. |
My firm is usually satisfied with market share growth. | |
My firm is usually satisfied with return on sales. | |
My firm is usually satisfied with net profit margins. | |
My firm is usually satisfied with gross profit margins. | |
Environmental performance (Zhu et al., 2008a) | Reduction of air emissions. |
Reduction of effluent waste. | |
Reduction of solid wastes. | |
Decrease in consumption for hazardous/harmful/toxic materials. | |
Decrease in frequency for environmental accidents. |