Egalitarian considerations play a central role in many areas of social choice theory.
Applications of egalitarian principles range from ensuring everyone gets an equal share of a …

In this work we study the problem of manipulation in the framework of merging complex
epistemic states. We adopt the techniques concerning representation and impossibility in …

Weighted voting games are a well-studied class of succinct simple games that can be used
to model collective decision-making in, eg, legislative bodies such as parliaments and …

This paper deals with the role of experts and crowds in solving important societal issues.
The authors argue that both experts and crowds are important stakeholders in collective …

We introduce a model of judgment aggregation in which individuals do not necessarily have
full information regarding the judgments held by their peers. This intuitively limits an …

The task of aggregating individual judgments over logically interconnected propositions is
called judgment aggregation. Manipulation of judgment aggregation procedures has first …

By a combination of well-known results in judgment aggregation, it is essentially impossible
to design an aggregation rule that simultaneously satisfies two crucial requirements: to …

Groups often need to reach decisions and decisions can be complex, involving the
assessment of several related issues. For example, in a university a hiring committee …

In the modern world, people make decisions together every day: they participate in
elections, boards of companies, juries of courts, and social activities amongst friends …

Judgment aggregation is a framework to aggregate individual opinions on multiple, logically
connected issues into a collective outcome. It is open to manipulative attacks such as …