Prioritization of low-carbon suppliers based on Pythagorean fuzzy group decision making with self-confidence level

Shouzhen Zeng, Xinming Peng, Tomas Baležentis and Dalia Streimikiene

Economic Research-Ekonomska Istraživanja, 2019, vol. 32, issue 1, 1073-1087

Abstract: Business decisions often require economic analysis involving uncertainties. This study brings forward the multi-attribute group decision making (MAGDM) framework based upon Pythagorean fuzzy (PF) sets with self-confidence of decision makers. By incorporating the ideas of the order-inducing variables of the induced ordered weighted averaging (IOWA) operator, we propose two PF confidence aggregation methods, namely PF confidence induced ordered weighted averaging (PFCIOWA) operator and PF confidence induced hybrid weighted averaging (PFCIHWA) operator. The focal property of the devised operators is their ability to take into consideration both the evaluation data and its corresponding confidence levels. Moreover, a MAGDM method based on the developed operators is adopted. Finally, the practicality of the method is tested by using low carbon supplier selection problems. The new approach is compared against the existing ones in order to check its applicability and validity. As an empirical case, the low carbon supplier selection problem is solved.

Date: 2019
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DOI: 10.1080/1331677X.2019.1615971

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