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MARKET SHARE: The fraction of an industry's total sales accounted for by a single business. In general, market share is a "first-guess" indicator of a firm's market control. If, for example, a company has a market share of 100 percent (that is, a monopoly), then you can rest assured it has a substantial amount of market control. A company with a 25 percent market share has less, but still notable, market control. In fact, when you get right down to the bottom line, the phrase "market share" is only worth mentioning for oligopolistic firms with a significant degree of market control. There really is no market control for a monopolistically competitive firm with a 0.00000001 percent market share.

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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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Today, you are likely to spend a great deal of time at the confiscated property police auction trying to buy either a birthday greeting card for your grandmother or a coffee cup commemorating yesterday. Be on the lookout for door-to-door salesmen.
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In the early 1900s around 300 automobile companies operated in the United States.
"There is no twilight zone of honesty in business. A thing is right or it's wrong. It's black or it's white. "

-- John F. Dodge, automaker

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