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INDUCED GOVERNMENT PURCHASES: Government purchases that depend on income or production (especially national income or gross national product). An increase in national income triggers an increase in induced government purchases. Induced government purchases is graphically depicted as the slope of the government purchases line and is measured by the marginal propensity for government purchases. The induced relation between income and government purchases, as well as other induced expenditures, form the foundation of the multiplier effect triggered by changes in autonomous expenditures.

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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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    AUCTION

    A formal market exchange in which prospective buyers make bids to purchase a commodity. An auction is an effective way of exchanging commodities by bringing together buyers and sellers. Auctions are commonly used to exchange financial instruments, agricultural commodities, personal assets, and works of art. Three notable types of auctions are English, Dutch, and sealed-bid.

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    APLS

    BLUE PLACIDOLA
    [What's This?]

    Today, you are likely to spend a great deal of time at a flea market wanting to buy either a packet of address labels large enough for addresses of both the sender and the recipient or a key chain with a built-in flashlight and panic button. Be on the lookout for high interest rates.
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    This isn't me! What am I?

    Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
    "It has been my philosophy of life that difficulties vanish when faced boldly. "

    -- Isaac Asimov

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