IFLYSIB   05383
INSTITUTO DE FISICA DE LIQUIDOS Y SISTEMAS BIOLOGICOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
The role of persuasion and compromise in opinion formation: slow dynamics on a square lattice
Autor/es:
FÁTIMA VELÁSQUEZ ROJAS; FEDERICO VAZQUEZ
Lugar:
Buenos Aires
Reunión:
Workshop; Latin American School and Workshop on Data Analysis and Mathematical Modeling of Social Science; 2016
Institución organizadora:
Faculty of Exact Sciences, University of Buenos Aires (UBA)
Resumen:
The process of opinion formation in a society involves many complex social mechanisms. One of them is the persuasion that can occurs between individuals with the same opinion orientation and tends to reinforce their previous opinions. Another is the agreement or compromise that tends to moderate opposing views. The competition between these two mechanisms was recently explored by a model of interacting agents analyzed in mean field, i e., where each agent can interact with any other agent [1]. In this model the opinions are represented by an integer number k that expresses the level of agreement on a given issue, from k = M (totally agreed) to totally against k = -M. Two interacting agents with the same orientation (positive or negative) reinforce their opinions and become more extremists, while the opinions of two agents with opposite orientations get closer after they interact. The behavior of the system depends on a reinforcement parameter (r) that measures the intensity of persuasion respect to the compromise. We study this model on a two-dimensional square lattice, which simulates a population with agents that interact with their four nearest neighbors in the lattice. We analyze the temporal evolution of the interface between opinion domains and the mean consensus time for different values of M, and compare with results in mean field.