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ENTRY BARRIERS: Institutional, government, technological, or economic restrictions 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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UTILITY MAXIMIZATION

The process or goal of obtaining the highest level of utility from the consumption of goods or services. The goal of maximizing utility is a key assumption underlying consumer behavior studied in consumer demand theory. Consumers are assumed to make choices, especially concerning the purchase of goods, such that they obtain the highest possible level of satisfaction. Utility maximization can be achieved at the peak of the total utility curve.

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GREEN LOGIGUIN
[What's This?]

Today, you are likely to spend a great deal of time calling an endless list of 800 numbers hoping to buy either a weathervane with a cow on top or a box of multi-colored, plastic paper clips. Be on the lookout for attractive cable television service repair people.
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A half gallon milk jug holds about $50 in pennies.
"Most of the things worth doing in the world had been declared impossible before they were done."

-- Louis D. Brandeis, Supreme Court Justice

FIRA
Foreign Investment Review Agency
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