[dyadic]

Yes, do that then. 2000 = x, 4000 = 2x, 6000 = 3x, 8000 = 4x

[moreaccountspls]

It doesn't work like that though. You can't ignore the diminishing value of money.

[RhysU]

Until all of one's marginal income is at the highest marginal tax rate, the government has already done that calculation for you.

At least until then, marginal utility is essentially linear with marginal gross.

Not sold? Boom, imagine that your loved ones are suddenly ill.