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REALISM OF PERFECT COMPETITION: Perfect competition is an idealized market structure that does NOT exist in the real world. While some real world industries might come relatively close to a one or two of the four key characteristics of perfect competition, none matches all four sufficiently that we can declare a perfectly competitively industry. Some industries come close on the large number of small firms and the identical product characteristics. A few industries have relatively good, although not perfect, information about prices and technology. However, almost all industries fall far short of the perfect mobility characteristics.
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MARGINAL PROPENSITY FOR GOVERNMENT PURCHASES The change in government purchases induced by a change in income or production (national income or gross domestic product). The marginal propensity for government purchases (abbreviated MPG) is another term for the slope of the government purchases line and is calculated as the change in government purchases divided by the change in income or production. The MPG plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part of the multiplier process. A related marginal measure is the marginal propensity to consume.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time at a flea market seeking to buy either a birthday greeting card for your aunt or a wall poster commemorating the moon landing. Be on the lookout for cardboard boxes.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
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"An organization's ability to learn, and translate that learning into action rapidly, is the ultimate competitive business advantage. " -- Jack Welch, General Electric chief executive
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JLE
Journal of Law and Economics
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