>What is the justification for taxing the wealthy disproportionately to their income? Is it out of moral need, financial expedience, or economic efficiency? On

>What is the justification for taxing the wealthy disproportionately to their income? Is it out of moral need, financial expedience, or economic efficiency? One argument I've seen is from marginal utility. To a person with few dollars, one more is quite useful. To a person with a million, one more (or less) is noise. J. S. Mill originally opposed progressive taxation, but may have changed some of his thinking on this subject later in life.