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GDP DEFLATOR: A price index based on the calculation of real gross domestic product that's used as an indicator of average prices in the economy. Those loveable economists who spend their days and nights compiling and estimating the size of our economic pie provide estimates of gross domestic product in both nominal dollars and real dollars.

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Lesson Contents
Unit 1: The Concept
  • Stretchability
  • Responsiveness
  • Quantity Changes
  • Some Definitions
  • Unit 1 Summary
  • Unit 2: A Little More
  • Two Categories
  • Why Study: Market Shocks
  • Why Study: Taxes
  • Why Study: Price Controls
  • Unit 2 Summary
  • Unit 3: Measurement
  • Two Types
  • The Coefficient
  • Doing The Numbers: Endpoint
  • Doing The Numbers: Midpoint
  • Unit 3 Summary
  • Unit 4: A Continuum
  • Elasticity Alternatives
  • Perfectly Elastic
  • Relative Elastic
  • Perfectly Inelastic
  • Relatively Inelastic
  • Unit 4 Summary
  • Unit 5: Market Elasticity
  • Four Measures
  • Elasticity Determinants
  • Unit 5 Summary
  • Course Home
    Elasticity Basics

    In this lesson, we will examine the basics of elasticity, including what it is, how it is measured, and how it is used in market analysis.

    • The first unit of this lesson, The Concept, introduces the elasticity concept and previews its role in market analysis.
    • In the second unit, A Little More, examines the importance of elasticity for such topics as market shocks, taxes, and price controls.
    • The third unit, Measurement, takes a close look at how elasticity is measured, focusing on the coefficient of elasticity.
    • The fourth unit, A Continuum, examines the five categories of elasticity, ranging from elastic to inelastic, that form a continuum.
    • The fifth unit and final unit, Market Elasticity, closes this lesson by introducing four key elasticity concepts for the market demand and supply.

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    MARGINAL PROPENSITY FOR GOVERNMENT PURCHASES

    The change in government purchases induced by a change in income or production (national income or gross domestic product). The marginal propensity for government purchases (abbreviated MPG) is another term for the slope of the government purchases line and is calculated as the change in government purchases divided by the change in income or production. The MPG plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part of the multiplier process. A related marginal measure is the marginal propensity to consume.

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    BROWN PRAGMATOX
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    Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors wanting to buy either pink cotton balls or a genuine down-filled comforter. Be on the lookout for the last item on a shelf.
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    Junk bonds are so called because they have a better than 50% chance of default, carrying a Standard & Poor's rating of CC or lower.
    "Sometimes when you innovate, you make mistakes. It is best to admit them quickly and get on with improving your other innovations. "

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