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NET EXPORTS LINE: The graphical depiction of the relation between net exports and national income (or gross domestic product) that plays a role in Keynesian economics and the Keynesian cross. The net exports line is derived by combining the exports line, relating exports and national income, with the imports line, relating imports and national income. Because exports are largely independent of national income and imports (which are subtracted from exports) increase with national income, the net exports line has a negative slope. The slope of the net exports line is thus the negative of the marginal propensity to import. The aggregate expenditures line used in the Keynesian cross is obtained by adding this net exports line, as well as, government purchases 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, EFFICIENCY Perfect competition is an idealized market structure that achieves an efficient allocation of resources. This efficiency is achieved because the profit-maximizing quantity of output produced by a perfectly competitive firm results in the equality between price and marginal cost. In the short run, this involves the equality between price and short-run marginal cost. In the long run, this is seen with the equality between price and long-run marginal cost at the minimum efficient scale of production.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet seeking to buy either rechargeable batteries or a rechargeable battery for your computer. Be on the lookout for the happiest person in the room.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
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"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." -- Jimmy Dean
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DOL
Department of Labor
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