About: http://webisa.webdatacommons.org/390790748

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	Menger contributed to the development of the theory of marginal utility, which contested the cost-of-production theories of value, developed by the classical economists such as Adam Smith and David Ricardo.
http://www.w3.org/ns/prov#wasQuotedFrom	pearltrees.com