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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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OPEN ECONOMY

An economy that engages in international trade, especially one that exports goods and services to, and imports goods and services from, other economies that make up its foreign sector. It is "open" in the sense that goods and services flow into and out of the country. The alternative to an open economy is a closed economy, one that does not engage in international trade.

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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time watching infomercials seeking to buy either an electric coffee pot with automatic shutoff or a brown leather attache case. Be on the lookout for crowded shopping malls.
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The average length of a "business lunch" is about 36 minutes.
"The time to repair the roof is when the sun is shining."

-- John F. Kennedy, 35th U. S. president

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Journal of Law and Economics
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