Social dynamics through kinetic exchange: The BChS model

TL;DR

This review discusses the BChS kinetic exchange model for opinion formation, highlighting its inclusion of negative interactions, phase transitions, and applications to real-world political scenarios.

Contribution

It provides a comprehensive overview of the BChS model's development, features, and applications, emphasizing its unique negative interaction component.

Findings

The BChS model captures phase transitions in opinion states.

Negative interactions influence critical behavior.

Applications include US elections and Brexit scenarios.

Abstract

This review presents an overview of the current research in kinetic exchange models for opinion formation in a society. The review begins with a brief introduction to previous models and subsequently provides an in-depth discussion of the progress achieved in the Biswas-Chatterjee-Sen model proposed in 2012, also known as the BChS model in some later research publications. The unique feature of the model is its inclusion of negative interaction between agents. The review covers various topics, including phase transitions between different opinion states, critical behavior dependent on various parameters, and applications in realistic scenarios such as the United States presidential election and Brexit.