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TOTAL COST AND MARGINAL COST: A mathematical connection between marginal cost and total cost stating that marginal cost IS the slope of the total cost curve. If the total cost curve has a positive slope (that is, is upward sloping), then marginal cost is positive. Moreover, if the total cost curve has a positive and increasingly steeper slope, then the marginal cost is positive and rising. If the total cost curve has a positive and decreasingly steeper slope, then the marginal cost is positive but falling.

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CONSUMER PRICE INDEX FOR URBAN WAGE EARNERS AND CLERICAL WORKERS

An index of prices of goods and services typically purchased by urban wage earners and clerical workers. This carries the official abbreviation CPI-W to distinguish it from its more famous sister index CPI-U, which is the standard Consumer Price Index for All Urban Workers, (commonly abbreviated simply as CPI). Like the standard CPI, the CPI-W is compiled and published monthly by the Bureau of Labor Statistics (BLS), using price data obtained from an elaborate survey of 25,000 retail outlets and quantity data generated by the Consumer Expenditures Survey.

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GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time surfing the Internet wanting to buy either a wall poster commemorating the first day of spring or a lazy Susan for you dining room table. Be on the lookout for gnomes hiding in cypress trees.
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More money is spent on gardening than on any other hobby.
"To sit back and let fate play its hand out, and never influence it, is not the way man was meant to operate."

-- John Glenn, astronaut, U.S. senator

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Generalized Least Squares
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