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MARGINAL COST: The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost indicates how much total cost changes for a give change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (remember total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. Marginal cost, usually abbreviated MC, is found by dividing the change in total cost (or total variable cost) by the change in output.
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                           DISPOSABLE INCOME AND PERSONAL INCOME: Disposable income (DI) is the total income that can be used by the household sector for either consumption or saving during a given period of time, usually one year. Personal income (PI) is the total income received by the members of the domestic household sector, which may or may not be earned from productive activities during a given period of time, usually one year. Disposable income is after-tax income that is officially calculated as the difference between personal income and personal tax and nontax payments. In the numbers game, personal tax and nontax payments are about 15 percent of personal income, which makes disposable personal income about 85 percent of personal income. The derivation of disposable income (DI) from personal income (PI) by subtracting personal taxes (PT) is illustrated in this equation:A reasonable question might arise: "Of what use is disposable income in the study of the macroeconomy?" After all, national income measures the total income EARNED by factors of production and personal income measures the total income RECEIVED by the household sector. What more is needed?Disposable income provides useful information about the amount of income received by the household sector that is actually available for spending. The key is that a portion of personal income is gobbled up by income taxes. While the household sector officially receives personal income, the government sector is primed and ready to extract a portion of this personal income in income taxes.
Recommended Citation:DISPOSABLE INCOME AND PERSONAL INCOME, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2023. [Accessed: February 7, 2023].
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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club 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 high interest rates.
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A communal society, a prime component of Karl Marx's communist philosophy, was advocated by the Greek philosophy Plato.
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"Everyone's got it in him, if he'll only make up his mind and stick at it. None of us is born with a stop-valve on his powers or with a set limit to his capacities. There's no limit possible to the expansion of each one of us." -- Charles M. Schwab
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