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GOVERNMENT PURCHASES LINE: A graphical depiction of the relation between government purchases and national income (or gross domestic product) that plays a role in Keynesian economics and the Keynesian cross. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity for government purchases. The vertical intercept of this line is autonomous government purchases. The aggregate expenditures line used in the Keynesian cross is obtained by adding this government purchases line, as well as, investment expenditures and net exports, to the consumption line. The government purchases line is also combined with investment expenditures for the Keynesian saving-investment model.
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PERFECT COMPETITION, SHORT-RUN SUPPLY CURVE A perfectly competitive firm's supply curve is that portion of its marginal cost curve that lies above the minimum of the average variable cost curve. A perfectly competitive firm maximizes profit by producing the quantity of output that equates price and marginal cost. As such, the firm moves along its positively-sloped marginal cost curve in response to changing prices.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time at a garage sale seeking to buy either a rechargeable flashlight or storage boxes for your computer software CDs. Be on the lookout for small children selling products door-to-door.
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Lombard Street is London's equivalent of New York's Wall Street.
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"Even a mistake may turn out to be the one thing necessary to a worthwhile achievement." -- Henry Ford
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OECD
Organization for Economic Co-operation and Development
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