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A POSTERIORI: A conclusion reached through logical reasoning based on facts and observations about the real world. This notion is closely related to the scientific verification of hypotheses and the identification of principles. A similar sounding, but opposite term is a prior, which is a unverified presumption made before an analysis is undertaken. For example, in the study of economics of crime you might assume, a priori, that people are basically "good", and conclude, a posteriori, that people are more likely to commit crimes when the threat of capture and conviction is lower.
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Lesson 7: Market Equilibrium | Unit 1: The Exchange
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Equilibrium is the balance of opposing forces that remains unchanged until another force intervenes. For example: If two people are pushing in opposite ways on a swinging door with equal strength, then neither will be able to go through. Each pusher represents an opposing force. For a market, the opposing forces are: - Demand. Buyers want to pay a lower price.
- Supply. Sellers want to receive a higher price.
Market equilibrium is indicated by equilibrium quantity and equilibrium price.- Equilibrium quantity is the quantity of a good traded among buyers and sellers when a market is in equilibrium.
- Equilibrium price is the price agreed to by buyers and sellers when a market is in equilibrium.
- Buyers and sellers will continue to trade the equilibrium quantity at the equilibrium price indefinitely.
- But, the equilibrium quantity and price can be disrupted by ceteris paribus determinants of demand and supply. Analyzing these disruptions help us understand economic events.
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STAR TREK SCARCITY A science-fiction phenomenon that emerged in the second half of the 20th century, which not only entertained millions of fans worldwide for decades, but also can be used to illustrate important economic concepts such as scarcity.
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RED AGGRESSERINE
[What's This?]
Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a how-to book on building remote controlled airplanes or an extra large beach blanket. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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"The secret of getting ahead is getting started. The secret of getting started is breaking your complex, overwhelming tasks into small manageable tasks, and then starting on the first one. " -- Mark Twain, writer
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PHLX
Philiadelphia Stock Exchange
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