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AD VALOREM TAX: A tax that is specified as a percentage of value. Sales, income, and property taxes are three of the more popular ad valorem taxes devised by government. The total ad valorem tax paid increases with the value of what's being taxed.

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MARKET SHARE: The fraction of an industry's total sales accounted for by a single business. In general, market share is a "first-guess" indicator of a firm's market control. If, for example, a company has a market share of 100 percent (that is, a monopoly), then you can rest assured it has a substantial amount of market control. A company with a 25 percent market share has less, but still notable, market control. In fact, when you get right down to the bottom line, the phrase "market share" is only worth mentioning for oligopolistic firms with a significant degree of market control. There really is no market control for a monopolistically competitive firm with a 0.00000001 percent market share.

     See also | market | market control | imperfect competition | oligopoly | monopolistic competition | concentration ratio |


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MARKET SHARE, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: April 1, 2025].


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MARGINAL REVENUE CURVE

A curve that graphically represents the relation between the marginal revenue received by a firm for selling its output and the quantity of output sold. A firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve. The marginal revenue curve for a firm with no market control is horizontal. The marginal revenue curve for a firm with market control is negatively sloped and lies below the average revenue curve.

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YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time flipping through the yellow pages hoping to buy either a flower arrangement with anything but tulips for your grandfather or a birthday greeting card for your mother that doesn't look like a greeting card. Be on the lookout for mail order catalogs with hidden messages.
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This isn't me! What am I?

Al Capone's business card said he was a used furniture dealer.
"If we all did the things we are capable of doing, we would literally astound ourselves."

-- Thomas Edison

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Net National Product
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