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MARGINAL REVENUE, MONOPOLY: The change in total revenue received by a monopoly resulting from a change in the quantity of output sold. For a monopoly firm, marginal revenue is less than the price.

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Lesson 20: Oligopoly | Unit 1: Intro Page: 4 of 24

Topic: Structure And Behavior <=PAGE BACK | PAGE NEXT=>

  • Structure: The basic structure of oligopoly rests with a small number of relatively large firms.

  • The two key structural considerations of this characteristic are:

    • Concentration
    • Entry Barriers.

  • Behavior: Markets with a small number of large firms behave differently than monopoly with a single firm or monopolistic competition with a large number of small firms.

  • Some of the more noted behavioral traits include:

    • Interdependence
    • Price Rigidity
    • Nonprice Competition
    • Price Leadership
    • Collusion
    • Mergers


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RATIONAL IGNORANCE

The decision NOT to become informed about a topic (such as what a political candidate wants to do) because the cost of acquiring the information is more than the expected benefit. The rational decision to remain ignorant about a subject is a straightforward application of utility maximization and along with the related notion of rational abstention, is a source of voter apathy and government inefficiency.

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BROWN PRAGMATOX
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Today, you are likely to spend a great deal of time at a flea market looking to buy either a genuine down-filled snow parka or throw pillows for your living room sofa. Be on the lookout for attractive cable television service repair people.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
"One worthwhile task carried to a successful conclusion is worth half-a-hundred half-finished tasks. "

-- Malcolm S. Forbes, publisher

WPO
Weakly Pareto Optimal
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