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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.

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FREE TRADE AREAS

A group of nations that have agreed to eliminate (or at least minimize) trade barriers -- especially tariffs, import quotas, and assorted regulatory non-tariff barriers -- within the group to encourage mutual trade. Free trade areas are usually contiguous or adjacent nations, often located on the same continent. Three noted free trade areas are comprised of nations located in North America, Europe, and Asia.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club wanting to buy either a half-dozen helium filled balloons or a packet of address labels large enough for addresses of both the sender and the recipient. Be on the lookout for gnomes hiding in cypress trees.
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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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