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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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INFLATION CAUSES Inflation, the persistent increase in the average price level, can be caused by an increase in aggregate demand or a decrease in aggregate supply. This suggests two basics sources, causes, or types of inflation--demand-pull inflation and cost-push inflation. While short-term bouts of inflation (up to several months) can result from anything (determinant) that might cause either increases in aggregate demand or decreases in aggregate supply, long-term inflation (a year or more) is possible ONLY through persistent increases in the money supply. As such, while demand-pull inflation and cost-push inflation are convenient ways to catalog the transmission mechanisms of inflation, the ultimate CAUSE of inflation is money.
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The average bank teller loses about $250 every year.
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"Before you can inspire with emotion, you must be swamped with it yourself. Before you can move their tears, your own must flow. To convince them, you must yourself believe." -- Sir Winston Churchill
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ADR
American Depositary Receipt, Asset Depreciation Range
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