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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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GOLD CERTIFICATES

Paper currency issued and authorized by the U.S. Department of the Treasury that is, in principle, backed up by, and exchangeable for, an equivalent value of gold. Gold certificates were in circulation as a medium of exchange for the U.S. economy during two periods, 1865 to 1922 and 1928 to 1934. A similar form of paper currency is silver certificates.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either yellow cotton balls or a set of steel-belted radial snow tires. Be on the lookout for the last item on a shelf.
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The first paper notes printed in the United States were in denominations of 1 cent, 5 cents, 25 cents, and 50 cents.
"Defeat is simply a signal to press onward. "

-- Helen Keller, author, lecturer

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