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SOCIAL SCIENCE: The scientific study of society--of human behavior and of social interactions. Several social sciences are economics, sociology, political science, and anthropology. Economics is considered a social science because it seeks to explain how society deals with the scarcity problem.

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BARRIERS TO ENTRY

Institutional, government, technological, or economic restrictions on the entry of participants into a market or industry. The four primary barriers to entry are: (1) resource ownership, (2) patents and copyrights, (3) government restrictions, and (2) start-up cost. Barriers to entry are a key reason for market control and the inefficiency that results. 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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APLS

BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time looking for a downtown retail store hoping to buy either a half-dozen helium filled balloons or a packet of address labels large enough for addresses of both the sender and the recipient. Be on the lookout for defective microphones.
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This isn't me! What am I?

The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
"Failure will never overtake me if my determination to succeed is strong enough."

-- Og Mandino, Author and Speaker

ACCR
Annual Cost of Capital Recovery
A PEDestrian's Guide
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