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LONG-RUN MARGINAL COST CURVE: A graphical representation of the relationship between long-run marginal cost and the quantity of output produced. Like other marginal curves, the long-run marginal cost curve follows the average-marginal rule relative to the long-run average cost curve. In all outward appearance, the long-run marginal cost curve looks very much like the short-run marginal cost, that is, it is U-shaped. However, the U-shape is attributable to returns to scale rather than increasing and decreasing marginal returns.

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INSTITUTION

An established method or way of performing an activity that is widely accepted throughout society. Institutions provide the rules, guidelines, and structure needed to carry out day-to-day economic activities, such as production, consumption, and exchange.

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Today, you are likely to spend a great deal of time at a going out of business sale wanting to buy either a how-to book on home remodeling or a tall storage cabinet with five shelves and a secure lock. Be on the lookout for telephone calls from long-lost relatives.
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Lewis Carroll, the author of Alice in Wonderland, was the pseudonym of Charles Dodgson, an accomplished mathematician and economist.
"What we have done for ourselves alone dies with us; what we have done for others and the world remains and is immortal."

-- Albert Pike

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