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PERFECT COMPETITION, LONG-RUN PRODUCTION ANALYSIS: In the long run, a perfectly competitive firm adjusts plant size, or the quantity of capital, to maximize long-run profit. In addition, the entry and exit of firms into and out of a perfectly competitive market guarantees that each perfectly competitive firm earns nothing more or less than a normal profit. As a perfectly competitive industry reacts to changes in demand, it traces out positive, negative, or horizontal long-run supply curve due to increasing, decreasing, or constant cost.

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Lesson 3: Scarcity | Unit 3: Opportunity Cost Page: 11 of 17

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  • The basic concept of opportunity cost as the highest valued alternative foregone in the pursuit of an activity.
  • How the fact that limited resources have alternative uses intertwines the notion of opportunity cost and the basic problem of scarcity.
  • Why economic cost is synonymous with opportunity cost.
  • Why opportunity cost need not be measured in money terms.
  • The difference between explicit and implicit opportunity cost.

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VALUE IN EXCHANGE

The ability to trade an item or asset, especially money, for other goods and services that can then be used to satisfy wants and needs. Value in exchange means that value (that is, satisfaction) is obtained indirectly through the acquisition of something else. For an item to have value in exchange it need NOT have value in use, value obtained directly from the consumption of a good or service.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time at a flea market wanting to buy either a remote controlled World War I bi-plane or a wall poster commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for jovial bank tellers.
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This isn't me! What am I?

It's estimated that the U.S. economy has about $20 million of counterfeit currency in circulation, less than 0.001 perecent of the total legal currency.
"Lord, where we are wrong, make us willing to change; where we are right, make us easy to live with. "

-- Peter Marshall, US Senate chaplain

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