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POINT ELASTICITY: The relatively responsiveness of a change in one variable (call it B) to an infinitesimally small change in another variable (call it A). The notion of point elasticity typically comes into play when discussing the elasticity at a specific point on a curve.< P>Point elasticity can be calculated in a number of different ways. Sophisticated economists, using sophisticated mathematical techniques (better known as calculus) can calculate point elasticity by taking derivatives of equations. Derivatives is fancy calculus talk for infinitesimally small changes.
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PUBLIC GOOD: A good that's difficult to keep nonpayers from consuming (excludability), and use of the good by one person doesn't prevent use by others (rival consumption). Examples include national defense, a clean environment, and any fourth of July fireworks display. Public goods are invariably provided by government because there's no way a private business can profitably produce them. Private businesses can't sell public goods in markets, because they can't charge a price and keep nonpaying people away. Moreover, businesses shouldn't charge a price, because there's no opportunity cost for extra consumers. For efficiency, government needs to pay for public goods through taxes. See also | good types | excludability | rival consumption | efficiency | market | exchange | market failure | common-property good | near-public good | private good | free-rider problem |
Recommended Citation:PUBLIC GOOD, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 6, 2025].
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AVERAGE FACTOR COST CURVE, MONOPSONY A curve that graphically represents the relation between average factor cost incurred by a firm for employing an input and the quantity of input used. Because average factor cost is essentially the price of the input, the average factor cost curve is also the supply curve for the input. The average factor cost curve for a firm with no market control is horizontal. The average factor cost curve for a firm with market control is positively sloped.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time at the confiscated property police auction seeking to buy either a birthday gift for your mother or a weathervane with a horse on top. Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"Defeat is simply a signal to press onward. " -- Helen Keller, author, lecturer
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MSCI
Morgan Stanley Capital Index
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