Approval Voting

Approval voting, where voters select all acceptable candidates, is a simple yet powerful voting method currently under intense scrutiny for its application in various settings, from committee elections to participatory budgeting. Research focuses on improving its representational fairness, particularly through modifications like limited voting and incorporating project costs or dynamic preferences, and on developing efficient algorithms for aggregation, especially in complex scenarios with correlated estimations or dependencies between choices. These advancements aim to enhance the accuracy and fairness of collective decision-making processes across diverse applications, ranging from corporate governance to resource allocation and even evaluating artificial intelligence agents.