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ENTRY BARRIER: 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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MARKET EQUILIBRIUM The state of equilibrium that exists when the opposing market forces of demand and supply achieve a balance with no inherent tendency for change. Once achieved, a market equilibrium persists unless or until it is disrupted by an outside force, especially the demand and supply determinants. A market equilibrium is indicated by equilibrium price and equilibrium quantity.
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The wealthy industrialist, Andrew Carnegie, was once removed from a London tram because he lacked the money needed for the fare.
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"Life is no brief candle to me. It is a sort of splendid torch which I have got a hold of for the moment, and I want to make it burn as brightly as possible before handing it on to future generations." -- George Bernard Shaw
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BVAR Bayesian VAR (Vector Autoregression)
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