adj
1. having an external origin
2. (Life Sciences & Allied Applications / Biology) Biology
a. developing or originating outside an organism or part of an organism
b. of or relating to external factors, such as light, that influence an organism
3. (Psychiatry) Psychiatry (of a mental illness) caused by external factors
exogenously adv
Thanks, Sally. If something like this comes up, when in doubt, shout it out. It is easy to get using terms of art from economics without pausing. Used in an economic or political-economic context, exogenous refers to some change outside the system of variables one is looking at. A frequent use is "exogenous shock"; an example for the US economy might be a sudden increase in oil prices, e.g., since it comes from "outside". Something "endogenous" might be inflation happening because more money is printed/created by the central bank; price increases would be understood as caused by something inside the system
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