"A way to put it in economic terms, imo, is that money, like everything else, has diminishing..."

“A way to put it in economic terms, imo, is that money, like everything else, has diminishing marginal utility. A dollar should be taxed according to it’s utility, not its value. A progressive system does that.”

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AT&T inadvertantly and beautifully articulates rationale for a progressive tax system : politics

This whole thing is interesting. Click through.