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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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SIXTH RULE OF IGNORANCE

The sixth of seven basic rules of the economy, stating that obtaining information is a costly activity that requires resources with alternative uses. As such, no one knows everything and everyone is ignorant about something.

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APLS

YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time flipping through mail order catalogs seeking to buy either income tax software or a how-to book on the art of negotiation. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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This isn't me! What am I?

A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"Everyone is bound to bear patiently the results of his own example. "

-- Phaedrus, Philosopher

BIS
Bank for International Settlements
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