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October 17, 2018 

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MARGINAL REVENUE CURVE, MONOPOLY: A curve that graphically represents the relation between marginal revenue received by a monopoly for selling its output and the quantity of output sold. The marginal revenue curve reflects the market control held by a monopoly firm. For a monopoly firm with complete market control, the marginal revenue curve is negatively-sloped. Moreover, for a given quantity of output, marginal cost is less than price, and the marginal revenue curve lies below the demand curve.

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Lesson Contents
Unit 1: The Concept
  • A Definition
  • So What?
  • Unit 1 Summary
  • Unit 2: Resources
  • Factors
  • Working Together
  • Free or Scarce?
  • Comparisons
  • Unit 2 Summary
  • Unit 3: Opportunity Cost
  • The Concept
  • Economic Cost
  • Unit 3 Summary
  • Unit 4: College Cost
  • Out of Pocket
  • What Else?
  • Unit 4 Summary
  • Unit 5: THE Problem
  • No Free Lunch
  • Solutions?
  • Unit 5 Summary
  • Course Home
    Scarcity

    In this lesson you'll see why scarcity tends to make economists grumpy. You'll see that scarcity is a perpetual condition that exists because people have unlimited wants and needs, but limited resources used to satisfy these wants and needs. You'll also see how this scarcity problem underlies the common notion of cost, which is integral to the study of economics. The five units contained in this lesson provide a tour through the economic problem of scarcity.

    • The first unit examines the fundamental concept of scarcity -- the combination of limited resources and unlimited wants and needs -- that is virtually synonymous with the study of economics.
    • The second unit discusses the four basic categories of limited resources --labor, capital, land, and entrepreneurship -- that produce the goods that are used to satisfy unlimited wants and needs.
    • In the third unit, we take a look at the notion of opportunity cost and see how it is related to the scarcity problem.
    • We then turn out attention in the fourth unit to a simple example of the explicit and implicit costs of attending college.
    • The fifth and final unit in this lesson then ponders why scarcity is considered THE economic problem and providing a little insight into why economists are grump.

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    PRICE ELASTICITY OF DEMAND

    The relative response of a change in quantity demanded to a change in price. More specifically the price elasticity of demand is the percentage change in quantity demanded due to a percentage change in price. This notion of elasticity captures the demand side of the market. A comparable elasticity on the supply side is the price elasticity of supply. Other notable demand elasticities are income elasticity of demand and cross elasticity of demand.

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    APLS

    YELLOW CHIPPEROON
    [What's This?]

    Today, you are likely to spend a great deal of time browsing through a long list of dot com websites trying to buy either a velvet painting of Elvis Presley or a wall poster commemorating yesterday. Be on the lookout for crowded shopping malls.
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    This isn't me! What am I?

    During the American Revolution, the price of corn rose 10,000 percent, the price of wheat 14,000 percent, the price of flour 15,000 percent, and the price of beef 33,000 percent.
    "Do what you feel in your heart to be right for you'll be criticized anyway. You'll be damned if you do and damned if you don't. "

    -- Eleanor Roosevelt, first lady

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    American Assocation of Commercial Publications
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