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DISCRETIONARY INCOME: After-tax income over which a person (or the entire household sector) has more or less complete discretionary control, which can be then used for either consumption or saving. Discretionary income is most commonly measured at the macroeconomic level by disposable income.

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MARGINAL REVENUE CURVE, PERFECT COMPETITION

A curve that graphically represents the relation between the marginal revenue received by a perfectly competitive firm for selling its output and the quantity of output sold. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve. A perfectly competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway wanting to buy either a country wreathe or galvanized steel storage shelves. Be on the lookout for high interest rates.
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A half gallon milk jug holds about $50 in pennies.
"Those who are blessed with the most talent don't necessarily outperform everyone else. It's the people with follow-through who excel. "

-- Mary Kay Ash, May Kay Cosmetics founder

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