About: http://webisa.webdatacommons.org/323478264

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	Piero Sraffa's model, suitably modified, provides a framework to analyze how markets for these different kinds of commodities fit together.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com