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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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INVOLUNTARY EXCHANGE

The process of unwillingly trading one valuable commodity (good, service, or resource) for another, usually prompted by the coercive powers of government. The key term is "unwillingly," which distinguishes involuntary exchanges from voluntary exchanges, such as those that are the foundation of market transactions.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time searching for rummage sales wanting to buy either looseleaf notebook paper or a three-hole paper punch. Be on the lookout for vindictive digital clocks with revenge on their minds.
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Francis Bacon (1561-1626), a champion of the scientific method, died when he caught a severe cold while attempting to preserve a chicken by filling it with snow.
"Everyone is bound to bear patiently the results of his own example. "

-- Phaedrus, Philosopher

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