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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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L

A broad monetary measure that combines M3 plus several liquid assets, including commercial paper, U.S. Treasury bills, savings bonds, and bankers' acceptances. L used to be tracked and reported by the Federal Reserve System along with M1, M2, and M3. However, L is no longer reported.

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Today, you are likely to spend a great deal of time browsing about a thrift store wanting to buy either a remote controlled World War I bi-plane or a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for telephone calls from former employers.
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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.
"If you wouldn't write it and sign it, don't say it."

-- Earl Wilson, Columnist

JEH
Journal of Economic History
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