This paper proposes, firstly, a versatile model of awareness and awareness change, and secondly, logics for awareness and awareness change developed using this model.

Author's abstract. In a situation of decision under uncertainty, a decision maker wishes to choose according to the maxmin expected utility rule, and he can observe the preferences of a set of experts who all share his utility function and all use the maxmin EU rule. This paper considers rules...

In this article, a framework is presented based on the view that organizations consist of political actors who act in accordance with their own perceptions of rationality, not in accordance with the principles of rational decision-making theory. ALSA-Actors' Logic Systems Analysis is focused on...

Author's abstract. Judgment aggregation theory generalizes social choice theory by having the aggregation rule bear on judgments of all kinds instead of barely judgments of preference. The paper briefly sums it up, privileging the variant that formalizes judgment by a logical syntax. The theory...

In this paper, the authors investigate judgment aggregation by assuming that some formulas of the agenda are singled out as premisses, and the Independence condition (formula-wise aggregation) holds for them, though perhaps not for others.

La théorie de l’agrégation des jugements, ou, comme elle est ici conçue,de l’agrégation logique, généralise celle du choix social en faisant porter la règle d’agrégation sur des jugements quelconques au lieu des seuls jugements depréférence. Elle procède du paradoxe doctrinal de...

Nudge is a semantically multifarious concept that originates in Thaler and Sunstein's (2008) popular eponymous book. In one of its senses, it is a policy for redirecting an agent's choices by only slightly altering his choice conditions, in another sense, it is concerned with bounded rationality...

Judgment aggregation theory, or rather, as we conceive of it here, logical aggregation theory generalizes social choice theory by having the aggregation rule bear on judgments of all kinds instead of merely preference judgments. It derives from Kornhauser and Sager’s doctrinal paradox and...

This study highlights the need, in both teaching and research, to come back to the original texts of great authors and to situate each “ vision of the world” in a long term historical perspective.

The competitive equilibrium correspondence, which associates equilibrium prices of commodities and assets with allocations of endowments, identifies the preferences and beliefs of individuals under uncertainty; this is the case even if the asset market is incomplete.