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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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EIGHT-FIRM CONCENTRATION RATIO The proportion of total output in an industry produced by the eight largest firms in an industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. Another related measure is the Herfindahl index. The eight-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control held by the eight largest firms in the industry.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"I love the man who can smile in trouble, who can gather strength from distress and grow brave by reflection. " -- Thomas Paine, statesman
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WAPM
Weak Axiom of Profit Maximization
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