An integrated fuzzy MOORA method and FMEA technique for sustainable supplier selection considering quantity discounts and supplier's risk

Supplier selection is a complex process and plays a signification role in promoting the sustainable supply chain. In this study, a fuzzy multi-objective optimization model based on the ratio analysis (fuzzy MOORA) is applied to evaluate the supplier's overall performance. In reality, suppliers face risks like natural calamity or political variability. Hence, failure mode and effects analysis (FMEA) is implemented to evaluate the risks of a supplier. Moreover, a novel multi-objective mathematical model is developed to consider supplier's sustainability and order allocation simultaneously. The efficiency and applicability of the proposed approach is shown by a case study of the evaporative cooler in the home appliance industry. The current approach can be implemented in many manufacturing industries such as electrical, automotive and chemical. The results show that by employing the proposed model not only potent to increase total profit but also decrease the amount of risks which imposes on the sustainability.