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MARSHALLIAN CROSS: The standard market diagram, so beloved by undergraduate economics students, with price measured on the vertical axis and quantity measured on the horizontal axis, that presents the law of demand as a downward-sloping demand curve and the law of supply as an upward-sloping supply curve. The derivation of this name comes from it's creator, Alfred Marshall, and that market equilibrium is achieved where the demand and supply curves intersect, or "cross."

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HERFINDAHL INDEX

A measure of concentration of the production in an industry calculated as the sum of the squares of market shares for each firm. This is one method of summarizing the degree to which an industry is oligopolistic and the concentration of market control held by the largest firms in the industry. Two other measures of industry concentration are the four-firm concentration ratio and the eight-firm concentration ratio.

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Today, you are likely to spend a great deal of time searching for a specialty store wanting to buy either a packet of address labels large enough for addresses of both the sender and the recipient or a key chain with a built-in flashlight and panic button. Be on the lookout for pencil sharpeners with an attitude.
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Francis Bacon (1561-1626), a champion of the scientific method, died when he caught a severe cold while attempting to preserve a chicken by filling it with snow.
"One person with a belief is equal to a force of ninety-nine with only interests."

-- John Stuart Mill

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