Rational Evaluation of Actions Under Complete Uncertainty

Abstract

Abstract. This work analyzes the problem of individual choice of actions under complete uncertainty. In this context, each action consists of a set of different possible outcomes with no probability distribution associated with them. The work examines and defines a class of choice procedures in which: a): the evaluation of sets (actions) is element-induced; and b): certain assumption of rationality, which is an adaptation of Sen’s α condition, is satisfied. Some results of characterization show that different well-known rules can be reinterpreted as particular cases within the defined class, each of them responding to different attitudes towards uncertainty by the agent.

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