Definition of "progressivity" [progressivity]

• The quality or degree of being progressive: "Proponents of progressivity often argue that higher-income people should pay higher taxes because they benefit more from government” ( National Review). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "As an aside, how much of the decrease in progressivity comes from greater breadth of stock ownership -- if more people own stock, then more people are imputed to be be paying corporate income taxes -- not that such imputations have anything to do with actual tax incidence?"
• "However, if progressivity is a requirement in the real world, the tax could be coupled with a standard per capita rebate that would, in effect, become a negative tax at lower income levels/consumption levels, and as you go up the income/consumption scale, the tax bite progressively gets to be greater."
• "Flatness itself has just about nothing to do with simplicity; the only complexity added by progressivity is looking up a number in a chart at the end."