Effectiveness of weighted majority rules with random decision power distribution

Daniel Berend, Yuri Chernyavsky

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


There is a large body of research studying the conditions under which majority decisions are best. In particular, in many circumstances, the probability of a group to decide correctly is higher than that of a random subgroup. Moreover, the latter probability increases as the subgroup size grows. Here we generalize those results by showing that, in the same setup, the simple majority rule is the most effective of all weighted majority rules when weights are distributed randomly between group members. For special families of weighted majority rules, rule effectiveness increases as we get "closer" to the simple majority rule.

Original languageEnglish
Pages (from-to)423-439
Number of pages17
JournalJournal of Public Economic Theory
Issue number3
StatePublished - 1 Jan 2008

ASJC Scopus subject areas

  • Sociology and Political Science
  • Finance
  • Economics and Econometrics


Dive into the research topics of 'Effectiveness of weighted majority rules with random decision power distribution'. Together they form a unique fingerprint.

Cite this