+A utility function is a mathematical construct in economics and decision theory that ranks an individual's preferences over a set of choices. It assigns a numerical value, or [utility](/wiki/utility), to different outcomes, reflecting the level of [satisfaction](/wiki/satisfaction) or desirability. This allows for a quantitative representation of choices and is fundamental to understanding rational behavior.
+## See also
+- [Preference](/wiki/preference)
+- [Decision Theory](/wiki/decision_theory)
+- [Economics](/wiki/economics)
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