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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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ELASTICITY AND SUPPLY INTERCEPT

The intersection of a straight-line supply curve with vertical price axis and/or horizontal quantity axis reveals the relative price elasticity of supply. Intersection with the horizontal quantity axis means inelastic and intersection with the vertical price axis means elastic. Intersection with the origin means unit elastic supply.

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Today, you are likely to spend a great deal of time strolling through a department store hoping to buy either an electric coffee pot with automatic shutoff or a brown leather attache case. Be on the lookout for neighborhood pets, especially belligerent parrots.
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The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
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