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October 22, 2026 

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RESERVE RATIO: The amount of reserves required by the Federal Reserve System as a ratio of the amount deposits backed by the reserves. Modern reserve ratios are in the range of 1-3% for checkable deposits. The reserve ratio plays a key role in the deposit multiplier. The simple deposit multiplier is simply the inverse of the reserve ratio. If the reserve ratio is 5%, then the deposit multiplier is 20. It's just that simple.

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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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Today, you are likely to spend a great deal of time at a crowded estate auction hoping to buy either a key chain with a built-in flashlight and panic button or a green and yellow striped sweater vest. Be on the lookout for neighborhood pets, especially belligerent parrots.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"A stumble may prevent a fall. "

-- Margaret Thatcher, British prime minister

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