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September 2, 2026 

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GROSS PRIVATE DOMESTIC INVESTMENT: Expenditures on capital goods to be used for productive activities in the domestic economy that are undertaken by the business sector during a given time period. This is the official item in the National Income and Product Accounts maintained by the Bureau of Economic Analysis measuring capital investment expenditures. Gross private domestic investment tends to be the least stable of the four expenditures, averaging between 12-18% of gross domestic product.

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AVERAGE FACTOR COST CURVE, PERFECT COMPETITION

A curve that graphically represents the relation between average factor cost incurred by a perfectly competitive firm for employing an input and the quantity of input used. Because average factor cost is essentially the price of the input, the average factor cost curve is also the supply curve for the input. The average factor cost curve for a perfectly competitive firm with no market control is horizontal. The average revenue curve for a firm with market control is positively sloped.

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Paying TAXES

The time has come to take a firm stand! The Shady Valley Gazette Tribune-Journal has published an inflammatory editorial calling for a "pedestrian" tax on anyone who ambles around the economy. This tax, as every pedestrian would surely agree, is misguided and short-sighted. It's also unfair and probably unconstitutional. How DARE the editors of the Shady Valley Gazette Tribune-Journal call for a "pedestrian" tax. Sure they argue that ambling pedestrians should help pay for the sidewalks, traffic signals, and other assorted public goods. But, it's certainly not in MY best interest as a pedestrian to pay this misguided, short-sighted, unfair, and probably unconstitutional tax.
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APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time surfing the Internet looking to buy either a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki or decorative garden figurines. Be on the lookout for crowded shopping malls.
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This isn't me! What am I?

Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
"The shifts of fortune test the reliability of friends. "

-- Marcus Tullius Cicero, Roman statesman

MPI
Marginal Propensity to Invest
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