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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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COINCIDENT ECONOMIC INDICATORS

Four economic statistics that tend to move up or down along WITH business-cycle expansions and contractions. Most importantly, these measures indicate peak and trough turning points when they actually occur. Coincident economic indicators are one of three groups of economic measures used to track business-cycle activity. The other two are leading economic indicators and lagging economic indicators.

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APLS

ORANGE REBELOON
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Today, you are likely to spend a great deal of time looking for a downtown retail store seeking to buy either a cross-cut paper shredder or a birthday greeting card for your father. Be on the lookout for cardboard boxes.
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The earliest known use of paper currency was about 1270 in China during the rule of Kubla Khan.
"We may affirm absolutely that nothing great in the world has been accomplished without passion."

-- Hegel

BJE
Bell Journal of Economics
A PEDestrian's Guide
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