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PERSONAL CONSUMPTION EXPENDITURES: The official item in the National Income and Product Accounts maintained by the Bureau of Economic Analysis measuring household consumption expenditures on gross domestic product. Personal consumption expenditures are far and away the largest and tends to be the most stable of the four expenditures, averaging about 65-70% of gross domestic product. The other official expenditures included in the National Income and Product Accounts are gross private domestic investment, government consumption expenditures and gross investment, and net exports of goods and services.

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LONG-RUN AVERAGE COST CURVE, DERIVATION

The long-run average cost curve is the envelope of an infinite number of short-run average total cost curves, with each short-run average total cost curve tangent to, or just touching, the long-run average cost curve at a single point corresponding to a single output quantity. The key to the derivation of the long-run average cost curve is that each short-run average total cost curve is constructed based on a given amount of the fixed input, usually capital. As such, when the quantity of the fixed input changes, the short-run average total cost curve shifts to a new location.

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APLS

YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time looking for a downtown retail store looking to buy either a genuine fake plastic Tiffany lamp or a microwave over that won't burn your popcorn. Be on the lookout for letters from the Internal Revenue Service.
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This isn't me! What am I?

In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
"Every generation of Americans needs to know that freedom exists not in doing what we like, but in having the right to do what we ought. "

-- Pope John Paul II

QJE
Quarterly Journal of Economics
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