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MARKET STRUCTURE: The manner in which a market is organized, based largely on the number of firms in the industry. The four basic market structure models are: perfect competition, monopoly, monopolistic competition, and oligopoly. The primary difference between each is the number of firms on the supply side of a market. Both perfect competition and monopolistic competition have a large number of relatively small firms selling output. Oligopoly has a small number of relatively large firms. And monopoly has a single firm.

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AD VALOREM TAX

A tax specified as a percentage of the price or value of a good, service, asset, or other activity. Ad valorem taxes tend to be broad based, imposed on activities such as income and retail sales. In fact, the two most important ad valorem taxes are income taxes and sales taxes. People pay a percentage of their incomes in income taxes or a percentage or the value of their purchases in sales taxes, regardless of the amount of time spent working or the quantities of goods purchases. An alternative is a per unit tax, with is a tax specified as a percentage of the physical quantity of a good.

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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time touring the new suburban shopping complex seeking to buy either a coffee cup commemorating last Friday (you know why) or a wall poster commemorating the first day of spring. Be on the lookout for the happiest person in the room.
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
"Defeat is not the worst of failures. Not to have tried is the true failure."

-- George E. Woodberry, Author

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