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AGGREGATE EXPENDITURE EQUATION: An equation indicating that aggregate expenditures (AE) are the sum of consumption expenditures (C), investment expenditures (I), government purchases (G), and net exports (X-M), stated as: AE = C + I + G + (X-M). This equation surfaces in the Keynesian economic income-expenditure model in the form of the aggregate expenditures line. However, it's also central throughout the study of macroeconomics, including aggregate demand and the measurement of gross domestic product.
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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. See also | long run | marginal cost | long-run average cost | long-run total cost | short run | fixed input | variable input | economies of scale | increasing returns to scale | diseconomies of scale | decreasing returns to scale |
Recommended Citation:LONG-RUN MARGINAL COST, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: November 10, 2025].
AmosWEB Encyclonomic WEB*pedia:Additional information on this term can be found at: WEB*pedia: long-run marginal cost
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ECONOMICS OF INFORMATION The study of the role that information plays in the economy and in the allocation of resources, with special attention paid to efficient information search. Key topics in this area of study and analysis are asymmetric information, moral hazard, adverse selection, signalling, and screening. This study of the economics of information also provides insight into the analysis of risk and uncertainty, which are important to insurance and financial markets.
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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time driving to a factory outlet trying to buy either a T-shirt commemorating the second moon landing or a coffee cup commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for jovial bank tellers.
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Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
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"Laughter is the shortest distance between two people. " -- Victor Borge, musician, humorist
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EOE
European Options Exchange
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