It is the opposite of an exogenous variable.
Endogenous variables are important in econometrics and economic modeling because they show whether a variable causes a particular effect. Economists employ causal modeling to explain outcomes (dependent variables) based on a variety of factors (independent variables), and to determine to which extent a result can be attributed to an endogenous or exogenous cause.
ендогенна змінна (внутрішньосистемна)
Ендогенна (внутрішня) змінна