Examlex
A streetlight is a
Utility Function
A mathematical representation of how consumers rank different bundles of goods according to the levels of satisfaction those goods provide.
Numeraire
A standard unit of account in economics used to compare the value of goods and services.
Perfect Substitutes
Goods that a consumer is completely indifferent between, meaning they will substitute one for another at a constant rate regardless of any change in price or utility.
Perfect Complements
Goods that are always used together in fixed proportions, where the utility or value of one item increases with use of the other.
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