About: http://webisa.webdatacommons.org/282033136

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	Pollution is an example of a negative externality while the positive spillover effects of investment in R & D, training, or education are examples of positive externalities.
http://www.w3.org/ns/prov#wasQuotedFrom	worldbank.org