Examlex
Identical twins may be brother and sister.
Short Run
A period in economics during which at least one input, such as plant size or capital, is fixed and cannot be changed.
Variable Costs
Variable costs are expenses that change in proportion to the activity or volume of business, such as materials and labor costs.
Fixed Inputs
Resources used in production that cannot be easily increased or decreased in a short period.
Marginal Cost
The cost of producing an additional unit of a good or service.
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