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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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AGGREGATE DEMAND The total real expenditures on final goods and services produced in the domestic economy that buyers are willing and able to undertake at different price levels, during a given time period (usually a year). Aggregate demand, usually abbreviated AD, is an inverse relation between price level and aggregate expenditures. This is one half of the AS-AD (aggregate market) analysis. The other half is aggregate supply. Aggregate demand consists of four aggregate expenditures--consumption expenditures, investment expenditures, government purchases, and net exports--made by the four macroeconomic sectors--household, business, government, and foreign.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either a weathervane with a cow on top or a box of multi-colored, plastic paper clips. Be on the lookout for celebrities who speak directly to you through your television.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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"Success is where preparation and opportunity meet." -- Bobby Unser, Race car driver
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ACBS
Accrediting Commission for Business Schools
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