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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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EXCHANGE RATE The price of the currency of one country stated in terms of the currency of another country, that is, the rate of exchange of one currency for another. Exchange rates, also termed foreign exchange rates, are prices determined in foreign exchange markets that are set up to trade the currencies of different nations (foreign exchange). In general, exchange rates reflect the overall health, vitality, and productivity of a nation's economy. However, because exchange rates also affect international trade (exports and imports) among nations they are often subject to governmental policy control.
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GRAY SKITTERY
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Today, you are likely to spend a great deal of time watching infomercials trying to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
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"The time to repair the roof is when the sun is shining." -- John F. Kennedy, 35th U. S. president
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Y
Income, Nominal Gross National Product
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