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BARRIER TO ENTRY: An institutional, government, technological, or economic restriction on the entry of firms into a market or industry. The four primary barriers to entry are: resource ownership, patents and copyrights, government restrictions, and start-up costs. Barriers to entry are a key reason for market control and the inefficiency that this generates. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.

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PRICE CEILING

A legally established maximum price that is imposed on a market BELOW the price that otherwise would be achieved in equilibrium. A price ceiling is placed on a market with the goal of keeping the price low, presumably based on the notion that the equilibrium price is too high. If imposed on a competitive market free of market failures, a price ceiling creates a shortage, or excess demand.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time flipping through mail order catalogs looking to buy either a remote controlled train set or a genuine down-filled snow parka. Be on the lookout for gnomes hiding in cypress trees.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"Good judgment comes from experience, and often experience comes from bad judgment."

-- Rita Mae Brown ‚ Writer

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Strong Law of Large Numbers
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