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9. Polarization and Radicalization in the Bounded Confidence Model: A Computer-Aided Speculation

: In the bounded confidence model agents update their opinions by averaging over all opinions that are not too far away from their own opinion. The article gives a precise definition of the basic model, offers several interpretations of the model, and introduces two simple extensions that allow to analyze polarization and radicalization. The basic model and its two extensions are seemingly simple. But the simplicity is deceptive. Lots of counterintuitive effects come as a surprise. Additionally, the article demonstrates that in terms of explanatory understanding of mechanisms, it makes a lot of sense to work with deterministic idealizations of random start distributions.