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ADVERSE SELECTION: When a negotiation between two people with different amounts of information, that is, asymmetric information, restricts the quality of the good traded. This typically happens because the person with more information is able to negotiate a favorable exchange. This is frequently referred to as the "market for lemons."

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Lesson 3: Scarcity | Unit 3: Opportunity Cost Page: 10 of 17

Topic: Economic Cost <=PAGE BACK | PAGE NEXT=>

The pervasive problem of scarcity makes opportunity cost fundamental to life itself and to the study of economics.
  • Economists use the term economic cost to mean opportunity cost. They also just use the term cost.
  • Cost is foregone alternative, not necessarily the amount of money paid. Money is a way to keep score. Money is a good way to measure opportunity cost, but not the only way.Two types of opportunity or economic costs:
  • Explicit opportunity cost: Out-of-pocket or accounting cost that involves a money payment.
  • Implicit opportunity cost: Cost that does not involve a money payment.

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AGGREGATE SUPPLY

The total (or aggregate) real production of final goods and services available in the domestic economy at a range of price levels, during a given time period. Aggregate supply, usually abbreviated AS, is two different relations between price level and real production--long run and short run. With long-run aggregate supply, prices and wages are flexible and all markets are in equilibrium. With short-run aggregate supply some prices and wage are NOT flexible and some markets are NOT in equilibrium. This is one half of the AS-AD (aggregate market) analysis. The other half is aggregate demand.

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ORANGE REBELOON
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Today, you are likely to spend a great deal of time at the confiscated property police auction looking to buy either a pair of red goulashes with shiny buckles or a handcrafted bird feeder. Be on the lookout for letters from the Internal Revenue Service.
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
"Act well at the moment, and you have performed a good action for all eternity."

-- Johann Kaspar Lavater

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