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LONG-RUN MARGINAL COST: The change in the long-run total cost of producing a good or service resulting from a change in the quantity of output produced. Like all marginals, long-run marginal cost is the increment in the corresponding total. What's most notable about long-run marginal cost, however, is that we are operating in the long run. Unlike the short run, in which at least one input is fixed, there are no fixed inputs in the long run. As such, there is only variable cost. This means that long-run marginal cost is the result of changes in the cost of all inputs.

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PAPER ECONOMY

Markets, exchanges, and other assorted economic activities that deal with legal or paper claims on physical assets rather than the physical assets. The vast majority of activities for the paper economy take place through financial markets. The paper economy complements production and consumption activities of the real economy that involve product markets and resource markets.

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Today, you are likely to spend a great deal of time wandering around the shopping mall seeking to buy either a case for your designer sunglasses or arch supports for your shoes. Be on the lookout for defective microphones.
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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LIBOR
london Inter-Bank Offered Rate
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