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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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Lesson 17: Market Structures | Unit 1: Intro Page: 3 of 23

Topic: Market Control <=PAGE BACK | PAGE NEXT=>

  • A definition of market control:

  • Market control is the ability of a firm to control the price and/or quantity of the good sold.
  • Market control by a firm depends on the number of competitors in the market:
    • More competitors mean less market control for each firm.

    • Fewer competitors mean greater market control for each firm


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ACCOUNTING PROFIT

The difference between the revenue received by a firm and the explicit accounting cost incurred. This is the profit listed on a firm's balance sheet, appears periodically in the financial sector of the newspaper, and is reported to the Internal Revenue Service for tax purposes. While accounting profit is the "standard" designation of profit used in the business world, economists prefer to use economic profit

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Today, you are likely to spend a great deal of time at the confiscated property police auction looking to buy either decorative picture frames or storage boxes for your income tax returns. Be on the lookout for high interest rates.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
"Recipe for success. Study while others are sleeping; work while others are loafing, prepare while others are playing, and dream while others are wishing."

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Consumer Price Index-Urban Wage Earners and Clerical Workers
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