Exogenous variable

Exogenous variable is a variable that a particular model takes as given; a variable whose value is independent of the model's solution. (Cf. endogenous variable.)

Definition

According to Macroeconomics by Mankiw (7th edition),

Exogenous variable. A variable that a particular model takes as given; a variable whose value is independent of the model's solution. (Cf. endogenous variable.)