About: http://webisa.webdatacommons.org/89201166

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If someone is creating a negative externality, such as pollution, for instance, he is engaging in too much of the activity that generated the externality.
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org