Authority measure for opinion dynamics

• 成果类型: Article
• 署名作者: Milchtaich, Igal; Peretz, Ron; Tsodikovich, Yevgeny
• 署名单位: Bar Ilan University; Ben-Gurion University of the Negev
• 刊物名称: GAMES AND ECONOMIC BEHAVIOR
• ISSN/ISSBN: 0899-8256
• DOI: 10.1016/j.geb.2026.05.001
• 发表日期: 2026
• 关键词: Axiomatization; centrality

摘要

We propose a formal framework for measuring the authority of individuals in opinion dynamics. Our framework is based on an axiomatic foundation in the tradition of coalitional game theory. We show that the unique solution concept satisfying our axioms is a generalization of the authority distribution notion of Hu and Shapley. Our approach is based on the dynamics of opinion exchange rather than on network topology. However, for any fixed opinion dynamics, our authority concept associates a network centrality measure with any given network topology. Earlier as well as new network centrality measures are obtained in this way.