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A: The common notation for the "intercept" term of an equation specified as Y = a + bX. Mathematically, the a-intercept term indicates the value of the Y variable when the value of the X variable is equal to zero. Theoretically, the a-intercept is frequently used to indicate exogenous or independent influences on the Y variable, that is, influences that are independent of the X variable. For example, if Y represents consumption and X represents national income, a measures autonomous consumption expenditures.
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TAX PROPORTIONALITY The proportion of income paid in taxes at different levels of income. In some cases the proportion of income paid in taxes increases with income in other cases it decreases. And in still other cases, it remains the same. Tax proportionality comes in three alternatives -- proportional tax (different incomes pay the same proportion in tax), progressive tax (higher incomes pay a higher proportion in tax), and regressive (lower incomes pay a higher proportion in tax).
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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time lost in your local discount super center seeking to buy either a weathervane with a horse on top or a case of blank recordable DVDs. Be on the lookout for vindictive digital clocks with revenge on their minds.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"Advice is like snow ‚ the softer it falls, the longer it dwells upon and the deeper it sinks into the mind. " -- Samuel Taylor Coleridge, poet
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Y
Income, Nominal Gross National Product
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