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OLIGOPOLY: A market structure dominated by a small number of large firms, selling either identical or differentiated products, and significant barriers to entry into the industry. This is one of four basic market structures. The other three are perfect competition, monopoly, and monopolistic competition.

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RISK AVERSION

A preference for risk in which a person prefers guaranteed or certain income over risky income. Risk aversion arises due to decreasing marginal utility of income. A risk averse person prefers to avoid risk and is willing to pay to do so, often through the purchase of insurance. This is one of three risk preferences. The other two are risk neutrality and risk loving.

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APLS

RED AGGRESSERINE
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Today, you are likely to spend a great deal of time strolling through a department store looking to buy either a rim for your spare tire or decorative celebrity figurines. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
"It is the mark of an educated mind to be able to entertain a thought without accepting it."

-- Aristotle

JFE
Journal of Financial Economics
A PEDestrian's Guide
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