Decision analysis is usually thought of as a model for decisions with a single decision-maker. Many attempts to extend decision analysis to group decisions have led to results indicating how it cannot be done. As a result, there had been no logically consistent way to extend the principle of decision analysis to group decisions. A different approach was used in Keeney (2013), where each member of a decision-making group could have a different decision frame for their common decision. Using the assumptions of decision analysis for each member’s analysis of their group decision and using an analogous set of decision analysis assumptions for the group decision to combine the member’s decision analyses produced a group decision analysis model. This talk discusses the concepts and intuitive logic for the model and practical aspects of applying it.
 
Reference
Keeney, R.L. (2013). Foundations for group decision analysis. Decision analysis, 10(2): 103-120.