Publication
Title
About the power to enforce and prevent consensus by manipulating communication rules
Author
Abstract
We explore the possibilities of enforcing and preventing consensus in continuous opinion dynamics that result from modifications in the communication rules. We refer to the model of Weisbuch and Deffuant, where n agents adjust their continuous opinions as a result of random pairwise encounters whenever their opinions differ not more than a given bound of confidence ε. A high ε leads to consensus, while a lower ε leads to a fragmentation into several opinion clusters. We drop the random encounter assumption and ask: How small may ε be such that consensus is still possible with a certain communication plan for the entire group? Mathematical analysis shows that ε may be significantly smaller than in the random pairwise case. On the other hand, we ask: How large may ε be such that preventing consensus is still possible? In answering this question, we prove Fortunato's simulation result that consensus cannot be prevented for ε > 0.5 for large groups. Next, we consider opinion dynamics under different individual strategies and examine their power to increase the chances of consensus. One result is that balancing agents increase chances of consensus, especially if the agents are cautious in adapting their opinions. However, curious agents increase chances of consensus only if those agents are not cautious in adapting their opinions.
Language
English
Source (journal)
Advances in complex systems. - Singapore
Publication
Singapore : 2007
ISSN
0219-5259
Volume/pages
10:2(2007), p. 251-269
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
External links
Record
Identification
Creation 26.10.2010
Last edited 03.09.2013