This is known thing - in some countries taxes are so high (progressive system, etc), billionaires just flew out there, and other freedoms don't help to retain w

This is known thing - in some countries taxes are so high (progressive system, etc), billionaires just flew out there, and other freedoms don't help to retain wealth people. For this are known Denmark, France, Belgium, Netherlands, Finland, Sweden. For example, I know, even when in Sweden exist very active venture system, but nearly all startups flew out there, after passed first two-three years and achieve some big valuation.