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LINE GRAPH: A graph containing one or more lines or curves that are used to represent relations between two (or more) variables. A line graph is a useful method of illustrating scientific principles and hypotheses important for the economic analysis.

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Lesson 13: Aggregate Demand | Unit 1: The Concept Page: 3 of 22

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  • How, first and foremost, aggregate demand represents expenditures made by all members of all sectors of our economy.
  • Aggregate demand is one side of the aggregate market (the AD/AS model) that's used to analyze national economic problems such as recessions, unemployment, and inflation, that might plague our economy.
  • How aggregate demand and the aggregate market are related to the circular flow model of the economy.

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MARGINAL REVENUE CURVE, PERFECT COMPETITION

A curve that graphically represents the relation between the marginal revenue received by a perfectly competitive firm for selling its output and the quantity of output sold. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve. A perfectly competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club looking to buy either a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki or decorative garden figurines. Be on the lookout for pencil sharpeners with an attitude.
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
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