Despite having a wide range of top marginal tax rates in the US (from 90%+ in the 50s to mid 30s today), tax revenue as a percentage of GDP has stayed remarkably constant since post-WW2 (~19%) [0].<p>It's not as simple as looking at the top rate, but you have to look at deductions, the caps, lower rates, etc. But I don't think there is a clear line between tax rates and taxes paid. There's likely an equilibrium rate that people will pay at which point tax aversion strategies make more sense. For instance, as I hit a higher tax bracket, I've invested more in pre-tax retirement, education and health savings accounts. Wealthier individuals have even more options.<p>So looking at marginal tax rates is a kind of red-herring.<p>[0] <a href="https://en.wikipedia.org/wiki/Hauser%27s_law" rel="nofollow">https://en.wikipedia.org/wiki/Hauser%27s_law</a>