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TIE-IN SALE: A type of sale in which consumers can buy one good only if they purchase another good as well. For example, if your grocery store sells you a bag of tea with the condition that you buy a pound of sugar, that would be a tie-in sale. Because they allow a monopoly to increase its profit over what it could make by selling the two goods separately at constant prices, tie-in sales can be used to price discriminate. However, it is important to realize that there are other reasons for tie-in sales other than price discrimination, such as to increase efficiency. For example, when we buy a car, it comes as a package of several goods (tires, engine, etc), which would be very difficult (and inefficient) for consumers to assemble if they were bought separately.

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Lesson Contents
Unit 1: The Macroeconomy
  • An Economy
  • Macroeconomics
  • Unit 1 Summary
  • Unit 2: Macro Problems
  • The Goals
  • Unemployment
  • Inflation
  • Unit 2 Summary
  • Unit 3: Business Cycles
  • Instability
  • Causes
  • Unit 3 Summary
  • Unit 4: Policies
  • Government
  • Viewpoints
  • Unit 4 Summary
  • Unit 5: Issues
  • Policies
  • Theories
  • Unit 5 Summary
  • Course Home
    Macro Basics

    In lesson, we move into the formal study of macroeconomics, laying the groundwork for lessons to come. In particular, this lesson introduces several important macroeconomics concepts and notions. Among the list of more important notions are the role an economy plays in the study of macroeconomics, the two key macroeconomic problems of inflation and unemployment, how these problems are related business-cycle instability, and economic stabilization policies designed to correct these problems.

    • The first unit of this lesson lays the foundation of for the study of macroeconomics, introducing the nature of an economy and providing a little information about the U.S. economy.
    • In the second unit, we examine some of the more notable macroeconomics problems, especially production, unemployment, and inflation.
    • We then take a look at the importance of business cycles in the macroeconomy, including recent trends in business cycle activity and a few potential business cycle causes.
    • The fourth unit then examines the role that economic policies play in the macroeconomy.
    • The firth unit wraps up this lesson with a few thoughts about the connection between political philosophies, economic policies, and economic theories.

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    PHENOMENON

    An event or action that is subject to investigation, analysis, and explanation using the scientific method. Phenomena are the sorts of things that science seeks to explain. They can be common events, like the blowing wind, or unusual, like the extinction of the dinosaurs.

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    APLS

    BROWN PRAGMATOX
    [What's This?]

    Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club wanting to buy either a small, foam rubber football or an instructional DVD on learning to the play the oboe. Be on the lookout for jovial bank tellers.
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    This isn't me! What am I?

    Francis Bacon (1561-1626), a champion of the scientific method, died when he caught a severe cold while attempting to preserve a chicken by filling it with snow.
    "An idea is never given to you without you being given the power to make it reality."

    -- Richard Bach, Author

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