Sequential aggregation judgments: Logical derivation of relevance relation

Aggregation theory and the relevance of some issues to others

I propose a new axiom on the aggregation of individual yes/no judgments on propositions into collective judgments: each collective judgment depends only on people’s judgments on relevant propositions. This contrasts with classical independence: each collective judgment depends only on people’s judgments on the current proposition. I generalize the premise-based and sequential-priority rules to ...

Aggregating Causal Judgments

Decision-making typically requires judgments about causal relations: we need to know the causal e§ects of our actions and the causal relevance of various environmental factors. We investigate how several individualsí causal judgments can be aggregated into collective causal judgments. First, we consider the aggregation of causal judgments via the aggregation of probabilistic judgments, and iden...

Methods for distance-based judgment aggregation

Judgment aggregation theory, which concerns the translation of individual judgments on logical propositions into consistent group judgments, has shown that group consistency generally cannot be guaranteed if each proposition is treated independently from the others. Developing the right method of abandoning independence is thus a high-priority goal. However, little work has been done in this ar...

The problem of constrained judgment aggregation

Group decisions must often obey exogenous constraints. While in a preference aggregation problem constraints are modelled by restricting the set of feasible alternatives, this paper addresses the modelling of constraints when aggregating individual yes/no judgments on interconnected propositions. For example, court judgments in breach-of-contract cases should respect the constraint that action ...

Sequential Aggregation of Judgments