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HERFINDAHL INDEX: 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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CHANGE IN QUANTITY DEMANDED

A movement along a given demand curve caused by a change in demand price. The only factor that can cause a change in quantity demanded is price. A related, but distinct, concept is a change in demand.

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GREEN LOGIGUIN
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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either a key chain with a built-in flashlight and panic button or a green and yellow striped sweater vest. Be on the lookout for deranged pelicans.
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A half gallon milk jug holds about $50 in pennies.
"Good humor is a tonic for mind and body. It is the best antidote for anxiety and depression. It is a business asset. It attracts and keeps friends. It lightens human burdens. It is the direct route to serenity and contentment."

-- Grenville Kleiser, Author

CPI-W
Consumer Price Index-Urban Wage Earners and Clerical Workers
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