STV is also totally compatible with polarization

On Friday, I showed NOMINATE scores for Cincinnati City Council members elected under permissive rules. Polarization was super low* for some years because, in each of those years, a lone wolf was able to play coalition kingmaker in a hung parliament.**

Now look at 1947, which is new in this plot, and watch those parties diverge. Yup. STV is totally compatible with high levels of polarization. (I never said it wasn’t.)

cincyThru1947

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