Terminator 2, Judgment Day

THE SILENCE OF THE LANDS The Ecojustice Implications of Ezekiel’s Judgement Oracles

Judgment Aggregation and the Discursive Dilemma

Judgment aggregation theory investigates which procedures a group could or should use to form collective judgments (‘yes’ or ‘no’) on a given set of propositions or issues, based on the judgments of the group members. How, for instance, should the citizens of a state reach collective judgments on the three propositions that multiculturalism is desirable, that immigration should be promoted, and...

Arrow's theorem in judgment aggregation

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

Control in Judgment Aggregation 1

In computational social choice, the complexity of changing the outcome of elections via various control actions, such as adding or deleting candidates or voters, has been studied intensely. We introduce the concept of control for judgment aggregation procedures, and study the complexity of changing the outcome of such procedures via control by adding, deleting, or replacing judges.

Not all Judgment Aggregation Should be Neutral

Judgment aggregation is concerned with the problem of aggregating individual views on logically related issues. It offers a general framework in which several different types of aggregation problems can be represented and studied. Furthermore, judgment aggregation can be applied to problems that consider together issues that are typically considered as separate aggregation problems. E.g., judgm...