externality
US /ɪkˌstɝːˈnæl.ə.ti̬/
UK /ɪkˌstɝːˈnæl.ə.ti̬/
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
:
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Pollution is a classic example of a negative externality.
污染是負面外部性的典型例子。
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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。