After the referendum vote on November 28, most attention was concentrated on the highly controversial deportation initiative, which pushed the fair tax initiative out of the spotlight, all the more so that the latter was soundly rejected.
Here are a few figures showing that, unsurprisingly, the fair tax initiative received less public approval where tax rates are lower. The first graph compares cantons on the basis of the tax rate (canton plus capital city) for a taxable income of CHF 200,000 per year:
The relationship is fairly strong, but it varies interestingly if we look at tax rates for different income categories. Points are regression coefficients (that is, the slope of the regression line in the previous graph), while bars show 95% confidence intervals:
Finally, a similar relation is found for municipalities in the canton of Zurich:
Nothing unexpected here, and obviously one cannot easily infer individual behavior from aggregate data, but the figures give some idea of the extent to which cost-benefit considerations may have impacted voting decisions in this case. If you have any thoughts, please do leave them in the comments.