Aggregation of Opinions and Preferences in Decision Problems
The analyst who wants more data than are available through statistics, may decide to use the opinion of experts; he then faces several questions that will affect the quality of the information that he will obtain: To whom to go for valuable insights? How to present his questions? Should he use iterative techniques? Should he avoid or create experts’ interaction? And finally, how should he aggregate the data that he gathered from them?
KeywordsDecision Maker Group Decision Collective Decision Opinion Aggregation Delphi Technique
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