5 papers
Individual Fairness in Budget Aggregation
Xiaohui Bei, Felix Brandt, Matthias Greger +3
We consider the problem of aggregating individual distributions over alternatives into a collective distribution, also known as budget aggregation. Existing fairness notion…
Core Existence in Approval-Based Committee Elections with up to Seven Voter Types
Patrick Becker, Matthias Greger, Dominik Peters
In an approval-based committee election, the task is to select a committee of up to candidates from a set of candidates based on the preferences of voters, each of whom…
Efficiently Computing Equilibria in Budget-Aggregation Games
Patrick Becker, Alexander Fries, Matthias Greger +1
Budget aggregation deals with the social choice problem of distributing an exogenously given budget among a set of public projects, given agents' preferences. Taking a game-theoret…
Optimal Budget Aggregation with Star-Shaped Preference Domains
Felix Brandt, Matthias Greger, Erel Segal-Halevi +1
We study the problem of aggregating distributions, such as budget proposals, into a collective distribution. An ideal aggregation mechanism would be Pareto efficient, strategyproof…
Coordinating Charitable Donations with Leontief Preferences
Felix Brandt, Matthias Greger, Erel Segal-Halevi +1
We consider the problem of funding public goods that are complementary in nature. Examples include charities handling different needs (e.g., protecting animals vs. providing health…