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MARKET STRUCTURE CONTINUUM: A diagram illustrating alternative degrees of market control held by different types of market structures based on the number of firms in the market and the degree of competitiveness. As the number of competitors along the continuum ranges from one to many, the degree of market control ranges complete to none. At one end of the continuum, with many competitors on no market control, is perfect competition. At the other end, with one competitor and complete market control, is monopoly. Oligopoly and monopolistic competition comprise the interior of the continuum, with monopolistic competition having many competitors but limited market control and oligopoly having few competitors and greater market control. The continuum illustrates that clear-cut dividing lines really do not exist between the market structures, especially for monopolistic competition and oligopoly.

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PERFECT COMPETITION CHARACTERISTICS: The four key characteristics of perfect competition are: (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology. These four characteristics mean that a given perfectly competitive firm is unable to exert any control whatsoever over the market.

     See also | perfect competition | assumption | mobility | industry | firm | technology | market | price taker | price maker | substitute | resources | barrier to entry | perfect competition and demand | perfect competition and efficiency | perfect competition and short-run supply curve | monopoly | monopolistic competition | oligopoly |


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PERFECT COMPETITION CHARACTERISTICS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: January 21, 2026].


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CORPORATE PROFITS

The total accounting profits received by corporations. Corporate profits are the official item in the National Income and Product Accounts maintained by the Bureau of Economics Analysis that measures profit earned by the household sector for supplying entrepreneurship services through corporations, and to some degree capital and land services, too. This is one of five official factor payments making up national income. The other four are compensation of employees, rental income of persons, net interest, and proprietors' income. Corporate profits the second largest factor payment category, usually coming in around 20 to 25 percent of national income.

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