Comment Re:Yay big government! (Score 1) 310
But top-tier incomes are really unstable, they go down fast in a downturn and up fast in an upturn, so federal revenue takes it on the chin from that group during times like 2008-2011.
Is that a bad thing or a good thing? If the ideal case is for taxation to decrease during lean times, and to increase during times of plenty, that might make a rather nice automatic adjustment.
That's probably the dominant factor in changes federal revenue as a percentage of GOP these days, now that 1% of tax payers pay about 1/3 of all income taxes, and that noise drowns out any signal we might get from changes in top marginal rate.
Also worth noting that in the 1950s and 1960s, the period of greatest economic growth in our history, we had a much higher top marginal rate. As corollary evidence, consider that a lower Gini index (less income concentration) correlates to a higher GDP per capita (PPP, product per person) all over the world.
I don't care about equality for its own sake, I'm a heartless economist: Whatever maximizes long run GDP is the best answer; it makes the rich richest, and it makes the poor richest, and it makes everyone in between richest, in the long run. That is the only objective definition of "good" in my world. There's a lot of unfounded beliefs on both sides of the argument, but the data, if you look at it without presuming to know the answer, points pretty hard in one direction.