
TL;DR
This paper investigates political polarization on Twitter by analyzing retweet behaviors, introducing the cocoon ratio, and using simulations to understand how social divisions and fake news proliferate.
Contribution
It introduces the cocoon ratio to quantify ideological echo chambers and employs an Ising model simulation to demonstrate societal division dynamics.
Findings
Trump followers are 2.56 times more likely to retweet within their own group.
Women tend to retweet within their ideological circle more than men.
Higher social capital correlates with less exclusive retweeting behavior.
Abstract
When information flow fails, when Democrats and Republicans do not talk to each other, when Israelis and Palestinians do not talk to each other, and when North Koreans and South Koreans do not talk to each other, mis-perceptions, biases and fake news arise. In this paper we present an in-depth study of political polarization and social division using Twitter data and Monte Carlo simulations. First, we study at the aggregate level people's inclination to retweet within their own ideological circle. Introducing the concept of cocoon ratio, we show that Donald Trump's followers are 2.56 more likely to retweet a fellow Trump follower than to retweet a Hillary Clinton follower. Second, going down to the individual level, we show that the tendency of retweeting exclusively within one's ideological circle is stronger for women than for men and that such tendency weakens as one's social capital…
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Taxonomy
TopicsOpinion Dynamics and Social Influence · Media Influence and Politics · Social Media and Politics
