adj.外生的；外界产生的；由外生长的
Changes of government can be regarded as exogenous events too. 政府重组同样可被看作是一外源性事件。
Disorders of old age are generally not exogenous. 老年疾病通长都不是起于外因的。
Every model includes exogenous and also endogenous variables which must be estimated. 每一个模型都包括需要估计的外生变量和内生变量。
