externality

US /ɪkˌstɝːˈnæl.ə.ti̬/
UK /ɪkˌstɝːˈnæl.ə.ti̬/
"externality" picture
1.

外部性

a side effect or consequence of an industrial or commercial activity that affects other parties without this being reflected in the cost of the goods or services involved

:
Pollution is a classic example of a negative externality.
污染是負面外部性的典型例子。
The planting of trees can create a positive externality by improving air quality.
植樹可以透過改善空氣品質產生積極的外部性