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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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GROSS PRIVATE DOMESTIC INVESTMENT This is the official item in the National Income and Product Accounts maintained by the Bureau of Economics Analysis measuring capital investment expenditures. Gross private domestic investment is expenditures on capital goods to be used for productive activities in the domestic economy that are undertaken by the business sector during a given time period. These expenditures tend to be the least stable of the four expenditures, averaging between 12-18 percent of gross domestic product. This percentage tends to be at the low end during business-cycle contractions and at the high end during business-cycle expansions. The other official expenditures included in the National Income and Product Accounts are personal consumption expenditures, government consumption expenditures and gross investment, and net exports of goods and services.
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PURPLE SMARPHIN
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Today, you are likely to spend a great deal of time touring the new suburban shopping complex trying to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for attractive cable television service repair people.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
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"In a time of drastic change, it is the learners who inherit the future. " -- Eric Hoffer, philosopher
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OLS
Ordinary Least Squares
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