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HERFINDAHL 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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ASSUMPTIONS, CLASSICAL ECONOMICS

Classical economics, especially as directed toward macroeconomics, relies on three key assumptions--flexible prices, Say's law, and saving-investment equality. Flexible prices ensure that markets adjust to equilibrium and eliminate shortages and surpluses. Say's law states that supply creates its own demand and means that enough income is generated by production to purchase the resulting production. The saving-investment equality ensures that any income leaked from consumption into saving is replaced by an equal amount of investment. Although of questionable realism, these three assumptions imply that the economy would operate at full employment.

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APLS

ORANGE REBELOON
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Today, you are likely to spend a great deal of time touring the new suburban shopping complex hoping to buy either a replacement nozzle for your shower or a decorative windchime with plastic . Be on the lookout for broken fingernail clippers.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
"Live in such a way that you would not be ashamed to sell your parrot to the town gossip."

-- Will Rogers

ECLA
Economic Commission for Latin America
A PEDestrian's Guide
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