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LAW OF INCREASING OPPORTUNITY COST: The proposition that opportunity cost, the value of foregone production, increases as more of a good is produced. This "law" can be seen in the production possibilities schedule and is illustrated graphically through the slope of the production possibilities curve. It generates the distinctive convex shape of the curve, making it flat at the top and steep at the bottom.

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Lesson 11: Elasticity Basics | Unit 2: A Little More Page: 10 of 25

Topic: Unit Review <=PAGE BACK | PAGE NEXT=>

In this unit, you should have learned about:
  • The two general categories of elasticity -- elastic and inelastic.
    • How elastic means a change in price prompts a relatively larger change in quantity.
    • How elastic means a change in price prompts a relatively smaller change in quantity.
  • How market shocks result in relatively different changes in price and quantity for elastic and inelastic demand and supply.
  • Why elasticity is important when analyzing the impact of taxes on markets.
  • How the two reasons for taxes -- revenue generation and resource allocation -- are achieved for elastic and inelastic goods.
  • Why elasticity is important when analyzing price ceilings and price floors.

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PEAK

The transition of a business-cycle expansion to a business-cycle contraction. The end of an expansion carries this descriptive term of peak, or the highest level of economic reached in recent times. A peak is one of two turning points. The other, the transition from contraction to expansion, is a trough. Turning points are important because they represent the transition from bad to good or good to bad.

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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors trying to buy either a half-dozen helium filled balloons or a packet of address labels large enough for addresses of both the sender and the recipient. Be on the lookout for slightly overweight pizza delivery guys.
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