About: http://webisa.webdatacommons.org/179031819

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	The usefulness of the approach represented by these models is examined by considering a number of issues, such as unemployment and trade relations.
http://www.w3.org/ns/prov#wasQuotedFrom	nber.org