English

Project Submission Games in Participatory Budgeting

Computer Science and Game Theory 2025-08-14 v1

Abstract

We introduce the framework of project submission games, capturing the behavior of project proposers in participatory budgeting (and multiwinner elections). Here, each proposer submits a subset of project proposals, aiming at maximizing the total cost of those that get funded. We focus on finding conditions under which pure Nash equilibria (NE) exist in our games, and on the complexity of checking whether they exist. We also seek algorithms for computing best responses for the proposers

Keywords

Cite

@article{arxiv.2508.09741,
  title  = {Project Submission Games in Participatory Budgeting},
  author = {Piotr Faliszewski and Łukasz Janeczko and Andrzej Kaczmarczyk and Grzegorz Lisowski and Grzegorz Pierczyński},
  journal= {arXiv preprint arXiv:2508.09741},
  year   = {2025}
}