Parametric Preference Orderings in Group Decision Making

Abstract

This paper considers parametric preference orderings in group decision making. Some families of parametric group preference orderings are defined on the basis of three wellknown preference aggregation rules; the sum of individual utilities, the Rawls maximin rule and the Nash bargaining solution function. They have some desirable properties such as monotonicity along with meaningful parameters, and therefore help the group of decision makers understand the present situation objectively and proceed the decision making process smoothly. Thus considering the parametric preference orderings suggested in this paper is an effective approach to group decision making or consensus formation.