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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.
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                           CONSTANT RETURNS TO SCALE: A given proportional change in all resources in the long run results in the same proportional change in production. Constant returns to scale exists if a firm increases ALL resources--labor, capital, and other inputs--by 10 percent, and output also increases by 10 percent. This is one of three returns to scale. The other two are increasing returns to scale and decreasing returns to scale. Constant returns to scale results if long run production changes are greater than proportional changes in all inputs used by a firm.Suppose, for example, that The Wacky Willy Company employs 1,000 workers in a 5,000 square foot factory to produce 1 million Stuffed Amigos (those cute and cuddly armadillos, tarantulas, and scorpions) each month. Constant returns to scale exists if the scale of operation expands to 2,000 workers in a 10,000 square foot factory (a doubling of the inputs) and production increases to exactly 2 million Stuffed Amigos. The anticipated pattern for most production activities is that increasing returns to scale emerge for relatively small levels of production, which is then following by constant returns to scale and decreasing returns to scale. Returns to scale are the flip side of economies and diseconomies of scale. Although economies and diseconomies of scale focus on changes in average cost, returns to scale focus on production. One way to view constant returns to scale is the quantity of production or the range or production in which the forces underlying increasing returns to scale exactly balance the forces underlying decreasing returns to scale.
Recommended Citation:CONSTANT RETURNS TO SCALE, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: April 26, 2024].
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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time at an auction wanting to buy either a remote controlled ceiling fan or a how-to book on home decorating. Be on the lookout for slow moving vehicles with darkened windows.
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Helping spur the U.S. industrial revolution, Thomas Edison patented nearly 1300 inventions, 300 of which came out of his Menlo Park "invention factory" during a four-year period.
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"We succeed in enterprises (that) demand the positive qualities we possess, but we excel in those (that) can also make use of our defects." -- Alexis de Tocqueville, Statesman
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OAS
Organization of American States
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