We review recent advances in the field of decision making under uncertainty or ambiguity. …

We develop an axiomatic approach to decision under uncertainty that explicitly takes into account the information …

We provide a general theorem on the aggregation of preferences under uncertainty. We study, in the Anscombe …-Aumann setting a wide class of preferences, that includes most known models of decision under uncertainty (and state …". The latter means that society cannot have a non-neutral attitude towards uncertainty on a subclass of acts. A corollary to …

that includes most known models of decision under uncertainty as well as state dependent versions of these models. We prove … that aggregation is possible and necessarily linear if and only if (society's) preferences are uncertainty neutral. The … latter means that society cannot have a non-neutral attitude toward uncertainty on a subclass of acts. A corollary to our …