I don’t have any firsthand knowledge of this, but I seem to recall reading a Time article as a kid in the 70s that discussed the high taxation in Sweden. Specifically, after one tax increase the top bracket edged over 100% (either 100.2% or 101.2%). This meant, as the article made clear, that for every Krona you made over that limit, you actually lost money (e.g. a person slightly over the line would have less net income after taxes than someone lightly below that line). I also recall the article alluding to the posibility of income flight, by individuals like ABBA [collectively cited --as bizarre as it sounds-- as second only to SAAB in net annual income in Sweden] who might otherwise find themselves reduced to penury. The Swedish government reportedly said it was “a mistake” and would be corrected the following year.
There were many details in that article that now seem suspect. I can certainly name many stranger economic facts, but I have been unable of locate confirmation of my recollections on the web.
Discussion and, especially, citations would be most welcome