Journal
SYMMETRY-BASEL
Volume 9, Issue 3, Pages -Publisher
MDPI AG
DOI: 10.3390/sym9030043
Keywords
group decision-making; decision analysis; aggregation operator; reference-dependent; utility theory
Categories
Funding
- Humanities and Social Science Fund Major Project of Beijing [15ZDA19]
- Natural Science Foundation of China [71671064, 71271083]
- Fundamental Research Funds for the Central Universities [2015XS33]
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To characterize the influence of decision makers' psychological factors on the group decision process, this paper develops a new class of aggregation operators based on reference-dependent utility functions (RUs) in multi-attribute group decision analysis. We consider two types of RUs: S-shaped, representing decision makers who are risk-seeking for relative losses, and non-S-shaped, representing those that are risk-averse for relative losses. Based on these RUs, we establish two new classes of reference-dependent aggregation operators; we study their properties and show that their generality covers a number of existing aggregation operators. To determine the optimal weights for these aggregation operators, we construct an attribute deviation weight model and a decision maker (DM) deviation weight model. Furthermore, we develop a new multi-attribute group decision-making (MAGDM) approach based on these RU aggregation operators and weight models. Finally, numerical examples are given to illustrate the application of the approach.
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