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AGGREGATION: The process of adding up, summing, or otherwise identifying the total value of a variable or measure, especially when used in the study of macroeconomics. Common items that are aggregated are demand, supply, and expenditures on gross domestic product, which result in aggregate demand, aggregate supply, and aggregate expenditures.

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Lesson 23: Factor Market Equilibrium | Unit 2: Market Control Page: 9 of 24

Topic: Monopsony <=PAGE BACK | PAGE NEXT=>

  • Here's the official monopsony definition:

  • A monopsony is market characterized by a single buyer.
  • Much as a monopoly is the only seller in a market, monopsony is the only buyer.

  • A few highlights about monopsony:

    • One Buyer
    • Inefficient
    • Ideal in the Extreme


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SCREENING

When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Screening occurs when those with limited information try to identify indicators suggesting more complete information. It is used in markets with adverse selection and moral hazard, especially in labor markets and in the provision of insurance. Common methods of screening include aptitude tests, affiliations, past behavior, and personal characteristics. A related method is signalling.

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Today, you are likely to spend a great deal of time at a going out of business sale looking to buy either a coffee cup commemorating the first day of spring or a printer that works with your stockpile of ink cartridges. Be on the lookout for slow moving vehicles with darkened windows.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"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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Arbitrage Pricing Theory
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