Abstract
The concept of a bounded confidence level is incorporated in a nonconservative kinetic exchange model of opinion dynamics model where opinions have continuous values . The characteristics of the unrestricted model, which has one parameter representing conviction, undergo drastic changes with the introduction of bounded confidence parametrized by . Three distinct regions are identified in the phase diagram in the plane and the evidences of a first order phase transition for are presented. A neutral state with all opinions equal to zero occurs for , independent of , while for , an ordered region is seen to exist where opinions of only one sign prevail. At , a transition to a disordered state is observed, where individual opinions of both signs coexist and move closer to the extreme values () as is increased. For confidence level , the ordered phase exists for a narrow range of only. The line is apparently a line of discontinuity, and this limit is discussed in some detail.
1 More- Received 3 May 2012
DOI:https://doi.org/10.1103/PhysRevE.86.016115
©2012 American Physical Society