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TOTAL COST AND MARGINAL COST: A mathematical connection between marginal cost and total cost stating that marginal cost IS the slope of the total cost curve. If the total cost curve has a positive slope (that is, is upward sloping), then marginal cost is positive. Moreover, if the total cost curve has a positive and increasingly steeper slope, then the marginal cost is positive and rising. If the total cost curve has a positive and decreasingly steeper slope, then the marginal cost is positive but falling.

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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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PINK FADFLY
[What's This?]

Today, you are likely to spend a great deal of time lost in your local discount super center hoping to buy either a box of multi-colored, plastic paper clips or several orange mixing bowls. Be on the lookout for malfunctioning pocket calculators.
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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!
"The roots of education are bitter, but the fruit is sweet."

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DCFM
Discounted Cash Flow Method
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