Examlex
Natural selection is random because no individuals are eliminated from reproducing due to different environments.
Close Substitutes
Products or services that can easily replace one another in the eyes of consumers, leading to competitive market dynamics.
Positive Profits
Positive profits occur when a business's total revenues exceed its total costs, indicating financial gain from its operations.
Long Run
Refers to a period where all factors of production and costs can be variable, allowing firms to adjust to changes in the business environment fully.
Short Run
A period in which at least one factor of production is fixed, allowing limited adjustments to changes in production or the business environment.
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