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TANSTAAFL: A rather cumbersome and usually hard to remember acronym for the expression "There ain't no such thing as a free lunch. This is a favorite saving of many economists because it highlights, albeit in a grammatically questionable manner, the fundamental problem of scarcity. The phrase serves to emphasize that seemingly "free" lunches are not really free. While they might be free to the customer, someone must pay, that is, incur an opportunity cost of foregone production. The lunch eaten by one person cannot be eaten by another.

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OLIGOPOLY, CHARACTERISTICS

The three most important characteristics of oligopoly are: (1) an industry dominated by a small number of large firms, (2) firms sell either identical or differentiated products, and (3) the industry has significant barriers to entry.

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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time searching the newspaper want ads hoping to buy either storage boxes for your computer software CDs or a set of tires. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?

The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
"Everyone is bound to bear patiently the results of his own example. "

-- Phaedrus, Philosopher

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