Meaning of the word externality in English

What does externality mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

externality

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

Noun

1.

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

Example:
Pollution is a classic example of a negative externality.
The planting of trees can create a positive externality by improving air quality.
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