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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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THREE-SECTOR, THREE-MARKET CIRCULAR FLOW

A circular flow model of the macroeconomy containing three sectors (business, household, and government) and three markets (product, factor, and financial) that illustrates the continuous movement of the payments for goods and services between producers and consumers, with particular emphasis on taxes and government purchases. Other circular models are two-sector, two-market circular flow; two-sector, three-market circular flow; and four-sector, three-market circular flow.

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APLS

YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time at the confiscated property police auction hoping to buy either a battery-powered, rechargeable vacuum cleaner or a remote controlled World War I bi-plane. Be on the lookout for poorly written technical manuals.
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This isn't me! What am I?

Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
"The purpose of learning is growth, and our minds, unlike our bodies, can continue growing as long as we live."

-- Mortimer Adler

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Securities and Exchange Commision
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