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January 31, 2023 

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LONG RUN: In terms of the macroeconomic analysis of the aggregate market, a period of time in which all prices, especially wages, are flexible, and have achieved their equilibrium levels. In terms of the microeconomic analysis of production and supply, a period of time in which all inputs in the production process are variable.

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4-FIRM CONCENTRATION RATIO: The proportion of total output in an industry that's produced by the four largest firms in the industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and how market control is held by the four largest firms in the industry.

     See also | concentration ratio | 8-firm concentration ratio | market share | market control | oligopoly | monopolistic competition |


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4-FIRM CONCENTRATION RATIO, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2023. [Accessed: January 31, 2023].


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FACTORS OF PRODUCTION

Labor, capital, land, and entrepreneurship used by society to produce consumer satisfying goods and services. Factors of production are also termed resources or scarce resources.

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Today, you are likely to spend a great deal of time at an auction trying to buy either shoe laces for your snow boots or a rim for your spare tire. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
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