About: http://webisa.webdatacommons.org/149312273

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	Under your definition, you could say that gold is a bubble because with the exception of making pretty things to wear and a few industrial purposes, nearly all of the value of gold comes from the fact that people hoard it.
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org