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LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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                           ELASTIC DEMAND: The general demand relation in which relatively small changes in price cause relatively large changes in quantity demanded. Small changes in price cause relatively large changes in quantity demanded or the percentage change in quantity demanded is larger than the percentage change in price. This characterization of elasticity is most important for the price elasticity of demand. Elastic demand is one of two general elasticity relations for demand. The other is inelastic demand. An elastic demand relation is a very responsive, or stretchable, relation. The elastic demand relation is most often directed toward demand in terms of the price elasticity of demand. In this context, demand is said to be elastic if the percentage change in quantity is larger than the percentage change in price. This means that buyers are responsive to price changes.An elastic demand relation can fall into one of two categories--perfectly elastic and relatively elastic. - Perfectly Elastic: Perfectly elastic means an infinitesimally small change in price results in an infinitely large change in quantity demanded. This elasticity alternative exists when the price is fixed, that is, an infinite range of quantities is associated with the same price. This is the extreme, limiting case of elastic. Perfectly elastic demand can occur, in theory, when buyers have the choice among a large number of perfect substitutes-in-consumption.
- Relatively Elastic: Relatively elastic means that relatively small changes in price cause relatively large changes in quantity. Quantity is very responsive to price, but not infinitely so. The percentage change in quantity demanded is greater than the percentage change in price. Relatively elastic demand occurs when buyers have the choice among a large number of close but not perfect substitutes-in-consumption.
Recommended Citation:ELASTIC DEMAND, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 16, 2025].
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Today, you are likely to spend a great deal of time at a flea market looking to buy either a microwave over that won't burn your popcorn or a T-shirt commemorating the first day of winter. Be on the lookout for a thesaurus filled with typos.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"The only thing that will stop you from fulfilling your dreams is you. " -- Tom Bradley, former Los Angeles mayor
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AIBD
Association of International Bond Dealers (now called International Securities Market Association)
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