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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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ENTREPRENEURSHIP

A special sort of human effort that takes on the risk of bringing labor, capital, and land together and organizing production. This is one of four basic categories of resources, or factors of production. The other three are labor, capital, and land.

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APLS

ORANGE REBELOON
[What's This?]

Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either yellow cotton balls or a set of steel-belted radial snow tires. Be on the lookout for small children selling products door-to-door.
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This isn't me! What am I?

The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
"I love the man who can smile in trouble, who can gather strength from distress and grow brave by reflection. "

-- Thomas Paine, statesman

JRE
Journal of Regulatory Economics
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