Sin tax

It was about two years ago that this northeastern city imposed a tax on sugary beverages to raise revenue and hopefully help improve the health of its residents. Of course, in terms of health, there have been no reports as to whether it made a difference. But there were some surprises, at least for the policymakers.
Sugary beverage taxes are designed to improve health. Yet, despite their increasing popularity with city government, there's no actual evidence of a health benefit. (That is, unless you call increased tax revenue a measure of health.)