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Venus' rotation on its axis
Positive Externality
A benefit received by a third party resulting from an economic transaction in which they were not involved.
Public Good
An offering of goods or services to society's members at no cost, supplied by the government or private parties, aiming not to generate profit.
Private Good
A product or service that is excludable and rivalrous, meaning its consumption by one individual prevents its consumption by another.
Optimal Level
Optimal Level refers to the most efficient, beneficial, or profitable position or state for a particular process, activity, or economic outcome.
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