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SLOPE, INVESTMENT LINE: The positive slope of the investment line is also termed the marginal propensity to invest (MPI). This slope is greater than zero but less than one, reflecting induced investment. The slope of the investment line affects the slope of the aggregate expenditures line and thus also affects the magnitude of the multiplier process.

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Lesson Contents
Unit 1: Intro
  • Definition
  • A Few Examples
  • Market Control
  • Competition
  • Unit 1 Summary
  • Unit 2: Four Types
  • A Continuum
  • Perfect Competition
  • Monopoly
  • Monopolistic Competition
  • Oligopoly
  • Other Structurres
  • Unit 2 Summary
  • Unit 3: Getting Control
  • Profit Motivation
  • Entry Barriers
  • Product Differentiation
  • Unit 3 Summary
  • Unit 4: Using Control
  • Takes And Makers
  • Demand Curves
  • Practices
  • Unit 4 Summary
  • Unit 5: Government
  • Efficiency
  • Regulation
  • Unit 5 Summary
  • Course Home
    Market Structures

    Our investigation into market structures lays the foundation for a closer examination of monopoly, monopolistic competition, and oligopoly. This lesson takes a look at how markets are structured based on their competitiveness, the degree of market control held by firms, the acquisition of this market control, and the use market control.

    • The first unit of this lesson, Competition And Control, begins this lesson with a look at competition and market control.
    • In the second unit, Four Types, we examine the four basic types of market structures -- perfect competition, monopoly, monopolistic competition, and oligopoly.
    • The third unit, Getting Control, then looks at two key ways that firms are able to acquire or increase their market control -- product differentiation and entry barriers.
    • In the fourth unit, Using Control, we investigate what firms do when they have market control.
    • The fifth and final unit, Government, then closes this lesson by considering the role government plays in regulating market control.

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    EURODOLLARS

    Deposits denominated in U.S. dollars in banks located outside of the United States or domestic branches of foreign banks. While such deposits originated with European banks, hence the "Euro" part of the name, they can be held by banks from any foreign country. Eurodollars are an attractive investment because they are NOT in U.S. banks and thus are NOT subject to U.S. banking regulations. Eurodollars, along with other institutional investment near monies, are added to M2 to derive M3.

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    APLS

    BEIGE MUNDORTLE
    [What's This?]

    Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors seeking to buy either a computer that can play video games and burn DVDs or a black duffle bag with velcro closures. Be on the lookout for broken fingernail clippers.
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    John Maynard Keynes was born the same year Karl Marx died.
    "It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult. "

    -- Seneca, statesman, dramatist, philosopher

    ILO
    International Labor Office
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