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ABILITY-TO-PAY PRINCIPLE: A principle of taxation in which taxes are based on the income or resource-ownership ability of people to pay the tax. The income tax collected by our friends at the Internal Revenue Service is one of the most common taxes that seeks to abide by the ability-to-pay principle. In theory, the income tax system is set up such that people with greater incomes pay more taxes. Proportional and progressive taxes follow this ability-to-pay principle, while regressive taxes, such as sales taxes and Social Security taxes, don't.

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Lesson 9: Consumer Demand | Unit 5: Taking Stock Page: 20 of 22

Topic: Two Laws <=PAGE BACK | PAGE NEXT=>

  • One point of interest on the horizon is the law of demand.
  • Recall that...
  • The law of demand states that an inverse relation exists between demand price and the quantity demanded, ceteris paribus.
  • The portion of this definition that is most important to the theory of consumer demand is the demand price.
  • Definitionally speaking,
  • Demand price is the maximum price that buyers would be willing and able to pay for a given quantity of a good.
  • The law of diminishing marginal utility is the guiding principle of consumer demand theory.
  • It captures the relation between marginal utility and quantity.

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MARGINAL PROPENSITY TO INVEST

The change in business investment expenditures induced by a change in income or production (national income or gross domestic product). The marginal propensity to invest (abbreviated MPI) is another term for the slope of the investment line and is calculated as the change in investment divided by the change in income or production. The MPI plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part to the multiplier process. A related marginal measure is the marginal propensity to consume.

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Today, you are likely to spend a great deal of time driving to a factory outlet trying to buy either an extra large beach blanket or a large flower pot shaped like a Greek urn. Be on the lookout for letters from the Internal Revenue Service.
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Approximately three-fourths of the U.S. paper currency in circular contains traces of cocaine.
"Carpe diem! Rejoice while you are alive; enjoy the day; live life to the fullest; make the most of what you have. It is later than you think."

-- Horace, Ancient Roman poet

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