About: http://webisa.webdatacommons.org/201053558

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	There are also externatility costs with some current forms of energy use, were the true price is not reflected in the product cost (ie pollution = market failure).Also the concept of perfect subtitutes" seems dubious.
http://www.w3.org/ns/prov#wasQuotedFrom	abc.net.au