Approval with Runoff

Théo Delemazure; Jérôme Lang; Jean-François Laslier; M. Remzi Sanver

IJCAI 2022poster6 citations

Approval with Runoff

Théo Delemazure, Jérôme Lang, Jean-François Laslier, M. Remzi Sanver

Abstract

We define a family of runoff rules that work as follows: voters cast approval ballots over candidates; two finalists are selected; and the winner is decided by majority. With approval-type ballots, there are various ways to select the finalists. We leverage known approval-based committee rules and study the obtained runoff rules from an axiomatic point of view. Then we analyze the outcome of these rules on single-peaked profiles, and on real data.

Agent-based and Multi-agent Systems: Computational Social Choice

BibTeX

@inproceedings{ijcai2022p33,
  title     = {Approval with Runoff},
  author    = {Delemazure, Théo and Lang, Jérôme and Laslier, Jean-François and Sanver, M. Remzi},
  booktitle = {Proceedings of the Thirty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-22}},
  publisher = {International Joint Conferences on Artificial Intelligence Organization},
  editor    = {Lud De Raedt},
  pages     = {230--236},
  year      = {2022},
  month     = {7},
  note      = {Main Track},
  doi       = {10.24963/ijcai.2022/33},
  url       = {https://doi.org/10.24963/ijcai.2022/33},
}