Binary opinion dynamics with stubborn agents

Ercan Yildiz, Asuman Ozdaglar, Daron Acemoglu, Amin Saberi, Anna Scaglione

Research output: Contribution to journalArticle

135 Scopus citations

Abstract

We study binary opinion dynamics in a social network with stubborn agents who influence others but do not change their opinions. We focus on a generalization of the classical voter model by introducing nodes (stubborn agents) that have a fixed state. We show that the presence of stubborn agents with opposing opinions precludes convergence to consensus; instead, opinions converge in distribution with disagreement and fluctuations. In addition to the first moment of this distribution typically studied in the literature, we study the behavior of the second moment in terms of network properties and the opinions and locations of stubborn agents. We also study the problem of optimal placement of stubborn agents where the location of a fixed number of stubborn agents is chosen to have the maximum impact on the long-run expected opinions of agents.

Original languageEnglish (US)
Article number2538508
JournalACM Transactions on Economics and Computation
Volume1
Issue number4
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

Keywords

  • Algorithms
  • Economics
  • Theory

ASJC Scopus subject areas

  • Marketing
  • Computer Science (miscellaneous)
  • Economics and Econometrics
  • Computational Mathematics
  • Statistics and Probability

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