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DOMINANT FIRM: A term employed in industrial organization to describe a firm that is a price maker and faces little competition from smaller price taking firms, called fringe firms. A firm can become a dominant firm because it has lower costs than fringe firms, because they have a superior differentiated product in the market or because a group of firms collectively act as a single firm. A dominant firm usually has a large market share.

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ARC ELASTICITY

The average elasticity for discrete changes in two variables. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of initial and ending values of each variable, rather than initial values. Arc elasticity is generally calculated using the midpoint elasticity formula. The contrast to arc elasticity is point elasticity. For infinitesimally small changes in two variables, arc elasticity is the same as point elasticity.

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Today, you are likely to spend a great deal of time watching infomercials looking to buy either a large green chalkboard shaped like the state of Maine or a replacement battery for your pocket calculator. Be on the lookout for poorly written technical manuals.
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
"The only profit center is the customer. "

-- Peter Drucker, management consultant

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