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HERFINDAHL-HIRSHMAN 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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BUYERS' PREFERENCES, DEMAND DETERMINANT

The satisfaction that buyers receive from the purchase of a good, which is assumed constant when a demand curve is constructed. Buyers' preferences is one of five demand determinants that shift the demand curve when they change. The other four are buyers' income, other prices, buyers' expectations, and number of buyers.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius seeking to buy either a turbo-powered vacuum cleaner or a battery-powered, rechargeable vacuum cleaner. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity.
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A half gallon milk jug holds about $50 in pennies.
"It is not the straining for great things that is most effective; it is the doing of the little things, the common duties, a little better and better."

-- Elizabeth Stuart Phelps, Writer

AFEA
American Farm Economic Association
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