Examlex
The cerebrum is divided into two hemispheres that control opposite sides of the body.
Substitute Products
Products that can serve as replacements for one another; when the price of one increases, the demand for the substitute is likely to increase.
Herfindahl Index
A measure of market concentration used to evaluate the level of competition within an industry, calculated by summing the squares of the market shares of all firms in the industry.
Four-Firm Concentration Ratio
A measure of market concentration that indicates the combined market share of the four largest firms in an industry.
Productive Efficiency
A situation where a good or service is produced at the lowest possible cost.
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