exogenous

/ɛkˈsɑdʒənəs/
adjective
  1. Originating from outside an organism, system, or environment.
    • The economy was impacted by exogenous shocks such as natural disasters.
    • Exogenous factors like pollution can affect plant growth.
    • Doctors studied exogenous hormones given to patients for treatment.
  2. In economics, caused by external factors not controlled within the model.
    • An exogenous change in oil prices can disrupt global markets.
    • Exogenous events like wars often shift a country's economic policy.
    • The model assumes that interest rates are exogenous variables.