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PER UNIT TAX: A tax that is specified as a fixed amount for each unit of a good sold. Federal excise taxes on gasoline and cigarettes fall into this per unit tax category.

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FOUR-FIRM CONCENTRATION RATIO

The proportion of total output in an industry produced by the four largest firms in an industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. Another related measure is the Herfindahl index. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control held by the four largest firms in the industry.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors trying to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for the happiest person in the room.
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During the American Revolution, the price of corn rose 10,000 percent, the price of wheat 14,000 percent, the price of flour 15,000 percent, and the price of beef 33,000 percent.
"The way employees treat customers reflects the manner in which they're treated by management. "

-- James Perkins, president, Cornell University

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