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A PRIORI: A presumption made before an analysis is undertaken, often based on experiences, beliefs, or deductions from seemingly self-evident propositions about how the world works. This is a Latin for assumption or axiom. A similar sounding, but opposite term is a posteriori, which is derived from observation or facts. For example, in the study of economics of crime you might assume, a priori, that people are basically "good", because that just seems to be part of human nature, and conclude, a posteriori, that people are more likely to commit crimes when the threat of capture and conviction is lower.
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OLIGOPOLY A market structure characterized by a small number of large firms that dominate the market, selling either identical or differentiated products, with 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. Oligopoly dominates the modern economic landscape, accounting for about half of all output produced in the economy. Oligopolistic industries are as diverse as they are widespread, ranging from breakfast cereal to cars, from computers to aircraft, from television broadcasting to pharmaceuticals, from petroleum to detergent.
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The Wide, Wide World Of FOREIGN TRADETwo blocks directly south of the Mega-Mart Discount Emporium we'll find that Natural Ned's Nursery and Garden Center is having a grand opening celebration. I'd like to saunter over to check out their sundials -- a valuable, and long sought after acquisition for my backyard garden. In fact, Natural Ned's Nursery and Garden Center has a new shipment of sundials imported from the sundial capital of the world -- the Republic of Northwest Queoldiola. If I'm going to get a sundial, I should get the best, right? Northwest Queoldiola produces the finest, least expensive, and most technologically advanced sundials in the world. However, Mega-Mart Discount Warehouse Super Center has an ample supply of good old American-made sundials. They're a little more expensive and not quite as good, but they're made in the U. S. of A. by good old Americans. What a dilemma!
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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time at a flea market wanting to buy either a turbo-powered vacuum cleaner or a battery-powered, rechargeable vacuum cleaner. Be on the lookout for neighborhood pets, especially belligerent parrots.
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This isn't me! What am I?
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Before 1933, the U.S. dime was legal as payment only in transactions of $10 or less.
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"All things are difficult before they are easy." -- Thomas Fuller, Physician
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Autoregressive Conditional Heteroskedasticity
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