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AEA: The abbreviation for, the American Economic Association, an organization of over 25,000 professional economists. Founded in 1885, this premier top-of-the-economic-association-list publishes the prestigious American Economic Review, arguably THE number one scholarly U.S. economic journal and the Journal of Economic Literature, arguably THE number one index of economic journal publications. The AEA, as acronymically inclined economists call it, also sponsors an annual conference where professional economists present scholarly papers on their latest scholarly research.

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Lesson 5: Market Demand | Unit 4: Determinants Page: 17 of 20

Topic: Ch...Ch...Changes <=PAGE BACK | PAGE NEXT=>

The difference between:
  • Demand, the whole range of prices and quantities
  • Quantity demanded, a specific quantity demanded at a specific price.
The difference between:
  • Change in demand, we are changing, moving, shifting, the entire demand curve, the whole set of prices and quantities is changing. The five determinants change the demand.
  • Change in quantity demanded, we have moved to a new quantity on an same demand curve. Only the price of the good changes the quantity demanded.
  • This difference lets us analyze cause and effect.
  • Don't confuse these two.

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SHORT RUN, MICROECONOMICS

In terms of the microeconomic analysis of production and supply, a period of time in which at least one input under the control of a firm used in the production process is variable and at least one input is fixed. In the short run, the variable input is usually labor and the fixed input is capital. The short-run analysis of production reveals the law of diminishing marginal returns and provides an understanding of the upward-sloping supply curve and the law of supply. This is one of four production time periods used in the study of microeconomics. The other three are long run, very long run, and very short run (or market period). The short run is also a time period designation used in the macroeconomic analysis of business cycles.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius hoping to buy either a how-to book on surfing the Internet or a computer that can play music and burn CDs. Be on the lookout for telephone calls from long-lost relatives.
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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.
"Defeat is simply a signal to press onward. "

-- Helen Keller, author, lecturer

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