A note on the method of equal shares Articles uri icon

publication date

  • August 2025

start page

  • 1

end page

  • 5

volume

  • 190

International Standard Serial Number (ISSN)

  • 0020-0190

Electronic International Standard Serial Number (EISSN)

  • 1872-6119

abstract

  • The Method of Equal Shares (ES) is a popular approval-based multi-winner voting rule, which was originally proposed by Peters and Skowron. It satisfies several well-known representation axioms, like extended justified representation (EJR) and priceability, and it can be computed in polynomial time. Further, it has already been employed in several real participatory budgeting elections. In this note, we prove that ES is an instance of the EJR-Exact family of voting rules that also satisfy EJR and were proposed by Aziz et al. 2018 before the work of Peters and Skowron.

subjects

  • Politics
  • Telecommunications

keywords

  • approval ballots; multi-winner elections; proportional representation