Mickey Was Right, Wasn't He? Ctd

A reader writes:

If you read the fine print under the graph (which you can only find on t you linked to, but not on your own post,) you see that the incomesrepresented are post-tax. In 1979, the highest marginal tax rates were 70%,double the current 35% rate. Looking at pre-tax income, you'd see a muchflatter curve. More importantly though, at 70% marginal tax rates, there's ahuge incentive for high-income earners to utilize tax-avoidance strategies, orjust plain defer their...