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Inflation explains the horizon and flatness problems.
Private Markets
Markets where transactions occur directly between parties without public exchange involvement, often characterized by less regulation.
Socially Optimal Level
A state of resource allocation where the benefits to society are maximized, considering all externalities.
Excise Tax
A tax levied on specific goods or services, such as alcohol, tobacco, and gasoline, usually to discourage their use or to generate revenue.
Negative Externality
A cost that affects a party who did not choose to incur it, often associated with the consumption or production of goods and services.
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