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HHI: The common abbreviation for the Herfindahl-Hirshman index (or the Herfindahl index), which is a measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

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MARKET DEMAND

The combined demand of everyone willing and able to buy a good in a market. Market demand is one half of the market. The other is market supply. It is graphically represented by a negatively-sloped market demand curve, which can be derived by combining, or adding, the individual demands of every buyer in the market.

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Today, you are likely to spend a great deal of time wandering around the downtown area seeking to buy either a wall poster commemorating next Thursday or a pair of gray heavy duty boot socks. Be on the lookout for letters from the Internal Revenue Service.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"You are never given a dream without also being given the power to make it true."

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