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April 26, 2018 

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VOTING PARADOX: The observation that voting by a relatively small group of people might generate a intransitive or inconsistent ranking of three or more alternatives, creating a paradox of rankings. The preferences of rational individuals are generally assumed to transitive and consistent, that is, if a person prefers A to B and B to C, then the person also prefers A to C. However, the preferences of group of voters might not be consistent. That is, as a group, voters might prefer A to B and B to C, but then prefer C to A. This is not only paradoxical and confusing, it also can be inefficient.

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FOUR-FIRM CONCENTRATION RATIO: The proportion of total output in an industry that's produced by the four largest firms in the industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and how market control is held by the four largest firms in the industry.

     See also | concentration ratio | eight-firm concentration ratio | market share | market control | oligopoly | monopolistic competition |


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FOUR-FIRM CONCENTRATION RATIO, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: April 26, 2018].


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DEMAND-PULL INFLATION

Inflation that results from increases in aggregate demand that exceed any increases in aggregate supply. This type of inflation results when the four macroeconomic sectors (household, business, government, and foreign) collectively try to purchase more output than the economy is capable of producing. The alternative type of inflation is cost-push inflation.

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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 looking to buy either an AC adapter that won't fry your computer or a case for your designer sunglasses. Be on the lookout for slow moving vehicles with darkened windows.
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