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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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LAW OF COMPARATIVE ADVANTAGE A principle that states that every nation, worker, or production entity has a production activity that incurs a lower opportunity cost than that of another nation, worker, or production entity, which means that trade between the two can be beneficial to both if each specializes in the production of a good with lower relative opportunity cost. This law is most often studied in the confines of international trade, but it also applies to labor and other types of production.
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PINK FADFLY
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Today, you are likely to spend a great deal of time at a dollar discount store trying to buy either a birthday greeting card for your aunt or a wall poster commemorating the moon landing. Be on the lookout for infected paper cuts.
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This isn't me! What am I?
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"Be kind and merciful. Let no one ever come to you without coming away better and happier." -- Mother Teresa of Calcutta, humanitarian
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D-J
Dow Jones
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