In the theory of judgment aggregation on connected propositions, an important question remains open: Which aggregation … rules are manipulable and which are strategy-proof? We define manipulability and strategy- proofness in judgment aggregation …, characterize all strategy-proof aggregation rules, and prove an impossibility theorem similar to the classic Gibbard …

All existing impossibility theorems on judgment aggregation over logically connected propositions have one of two … logical connections. An important open question is whether judgment aggregation faces any serious impossibilities without …: there exists no judgment aggregation rule satisfying universal domain, collective rationality, anonymity and a new condition …

In response to recent work on the aggregation of individual judgements on logically connected propositions into … collective judgements, it is often asked whether judgement aggregation is a special case of Arrowian preference aggregation. We … argue the opposite. After proving a general impossibility theorem, we construct an embedding of preference aggregation into …

Within social choice theory, the new field of judgment aggregation aims at reaching collective judgments on a set of …

In the emerging literature on judgment (as opposed to preference) aggregation, expert rights or liberal rights have not …

Within social choice theory, the new field of judgment aggregation aims to merge many individual sets of judgments on … aggregation is studied using standard propositional logic, with a limited expressive power and a problematic representation of …

demands. We find that the hypothesis of perfect aggregation is not rejected. Nevertheless, some estimates of area-wide long …

ability to process information, which turns out to be enough to generate persistence upon aggregation. We find empirical …

incomplete markets and indivisible labor generates an aggregation error that looks much like the preference residual in the data …