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B: The common notation for the "slope" term of an equation specified as Y = a + bX. Mathematically, the b-slope term indicates the change in the value of the Y variable resulting from a unit change in the value of the X variable. Theoretically, the b-slope is frequently used to indicate endogenous or dependent relation between the Y and X variables. For example, if Y represents consumption and X represents national income, b measures induced consumption expenditures.

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FOUR-FIRM CONCENTRATION RATIO: The proportion of total output in an industry that's produced by the four largest firms in the industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and how market control is held by the four largest firms in the industry.

     See also | concentration ratio | eight-firm concentration ratio | market share | market control | oligopoly | monopolistic competition |


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MARKET EQUILIBRIUM, NUMERICAL ANALYSIS

An analysis of market equilibrium using a table of numbers that combines a demand schedule and a supply schedule. A numerical analysis of the market is used to ascertain information such as market equilibrium, equilibrium price, equilibrium quantity, shortage, and surplus. This is one of two basic methods of analyzing market equilibrium. The other is a graphical analysis using demand and supply curves.

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Today, you are likely to spend a great deal of time searching for rummage sales looking to buy either a bottle of blackcherry flavored spring water or a travel case for you toothbrush. Be on the lookout for vindictive digital clocks with revenge on their minds.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
"There is no point at which you can say, „Well, I'm successful now. I might as well take a nap.¾"

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Q-RATIO
Ratio of Total Market Value of Physical Assets
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