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MARGINAL REVENUE CURVE: A curve that graphically represents the relation between marginal revenue received by a firm for selling its output and the quantity of output sold. The marginal revenue curve is constructed to capture the relation between marginal revenue and the level of output, holding other variables constant.

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INJECTIONS-LEAKAGES MODEL

A macroeconomic model that balances non-consumption expenditures on production (injections) and non-consumption uses of income (leakages) that is used to identify the equilibrium level of, and analyze disruptions to, aggregate production and income. The injections-leakages model is based on the principles of Keynesian economics and provides an alternative to the standard aggregate expenditures (Keynesian cross) analysis. The three injections included in the model are investment expenditures, government purchases, and exports. The three leakages included in the model are saving, taxes, and imports. Three variations are the two-sector injections-leakages model (or saving-investment model), three-sector injections-leakages model, and four-sector injections-leakages model.

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Today, you are likely to spend a great deal of time lost in your local discount super center looking to buy either high-gloss photo paper that works with your printer or a desktop calendar with all federal and state holidays highlighted. Be on the lookout for malfunctioning pocket calculators.
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The wealthy industrialist, Andrew Carnegie, was once removed from a London tram because he lacked the money needed for the fare.
"Don't be afraid if things seem difficult in the beginning. That's only the initial impression. The important thing is not to retreat; you have to master yourself."

-- Olga Korbut, Gymnast

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