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OLIGOPSONY: A market structure dominated by a small number of large buyers controlling the buying-side of a market. Oligopsony is the somewhat obscure and seldom discussed buying counterpart to an oligopoly seller that controls the selling side of a market. Whereas oligopoly is most relevant to product markets, oligopsony is most relevant to factor markets.

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THREE-SECTOR INJECTIONS-LEAKAGES MODEL

A variation of the Keynesian injections-leakages model that includes the three domestic sectors--the household sector, the business sector, and the government sector. This model provides an alternative to the three-sector aggregate expenditures (Keynesian cross) analysis of government stabilization policies, especially how fiscal policy changes in government purchases and taxes can be used to close recessionary gaps and inflationary gaps. Equilibrium is identified as the intersection between the S + T line and the I + G line. Two related variations are the two-sector injections-leakages model and the four-sector injections-leakages model.

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Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway trying to buy either a birthday gift for your aunt or a pair of leather sandals that won't cause blisters. Be on the lookout for strangers with large satchels of used undergarments.
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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