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MARGINAL TAX RATE: A tax rate that is the percentage of an incremental change in the tax base paid in taxes. Comparable to any marginal, this is the change in total taxes collected or paid divided by the change in the total value of the tax base. For example, if a person has a $10,000 increase in earnings from $40,000 to $50,000 and income taxes increase by $2,000 from $3,000 to $5,000 in taxes, then the marginal income tax rate is 20 percent. The contrasting term is average tax rate.

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ABSTRACTION

Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is an essential feature of the scientific method. Hypothesis verification, model construction, and comparative static analysis are not possible without abstraction.

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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway looking to buy either a package of 3 by 5 index cards, the ones without lines or a blue mechanical pencil. Be on the lookout for letters from the Internal Revenue Service.
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More money is spent on gardening than on any other hobby.
"The secret of getting things done is to act! "

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