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POVERTY LINE: The official measure of the income needed by a family based on family size, location, and characteristics of the head of the household. The official U.S. poverty line is based on more of a relative poverty level rather than an absolute poverty level. For example, a family of two living in a rural area would need a different amount of money to stay above the official poverty line that would a family of four living in a city.

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U-SHAPED COST CURVES

The family of short-run cost curves consisting of average total cost, average variable cost, and marginal cost, all of which have U-shapes. Each is U-shaped because it begins with relatively high but falling cost for small quantities of output, reaches a minimum value, then has rising cost at large quantities of output. Although the average fixed cost curve is not U-shaped, it is occasionally included with the other three just for sake of completeness.

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YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time at a dollar discount store hoping to buy either a wall poster commemorating the first day of winter or blue cotton balls. Be on the lookout for gnomes hiding in cypress trees.
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
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