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July 26, 2024 

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MARKET POWER: The ability of buyers or sellers to exert influence over the price or quantity of a good, service, or commodity exchanged in a market. Market power largely depends on the number of competitors on each side of the market. If a market has relatively few buyers, but many sellers, then limited competition on the demand-side of the market means buyers tend to have relatively more market power than sellers. The converse occurs if there are many buyers, but relatively few sellers. This is also termed market control.

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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.

     See also | elasticity | variable | point elasticity | midpoint formula |


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ARC ELASTICITY, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: July 26, 2024].


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CIVILIAN LABOR FORCE

Everyone in the economy, 16 years of age or older, who is neither institutionalized nor in the military, and is either employed or unemployed but actively seeking employment. The civilian labor force is the "official" specification for the national economy's labor supply. It is used for such calculations as the unemployment rate and the labor force participation rate. In particular, the unemployment rate is technically specified as the "percent of the civilian labor force that is unemployed." The size of the civilian labor force (along with the wildly popular unemployment rate) is estimated monthly by the Bureau of Labor Statistics (BLS) from data generated by the Current Population Survey (CPS).

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