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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.
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LONG RUN, MACROECONOMICS In terms of the macroeconomic analysis of the aggregate market, a period of time in which all prices, especially wages, are flexible, and are able to achieve equilibrium levels. This is one of two macroeconomic time designations; the other is the short run. Long-run wage and price flexibility means that ALL markets, including resource markets and most notably labor markets, are in equilibrium, with neither surpluses nor shortages. Wage and price flexibility and the resulting resource market equilibria are the reason for the vertical long-run aggregate supply curve.
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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time looking for a downtown retail store seeking to buy either arch supports for your shoes or an AC adapter that works with your MPG player. Be on the lookout for telephone calls from former employers.
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In the early 1900s around 300 automobile companies operated in the United States.
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"Always make a total effort, even when the odds are against you." -- Arnold Palmer
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AR(N)
A nth-order Autoregressive Process
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