Diffusion of multiple information: On information resilience and the power of segregation

• 成果类型: Article
• 署名作者: Tabasso, Nicole
• 署名单位: University of Surrey; Universita Ca Foscari Venezia
• 刊物名称: GAMES AND ECONOMIC BEHAVIOR
• ISSN/ISSBN: 0899-8256
• DOI: 10.1016/j.geb.2019.09.003
• 发表日期: 2019
• 页码: 219-240
• 关键词: Social networks; information transmission; Multiple states; segregation

摘要

We introduce two pieces of information (memes) into a diffusion process in which memes are transmitted when agents meet and forgotten at an exogenous rate. At most one meme can be transmitted at each meeting, which one depends on preferences over memes. We find that the conditions under which a unique meme becomes endemic are sufficient for both to become endemic. Segregation according to information preferences leads to polarization, i.e., nobody is informed of both memes, and a loss of information. We show how the likelihood of segregation depends on information preferences and on parameters of the diffusion process. (C) 2019 Elsevier Inc. All rights reserved.