About: http://webisa.webdatacommons.org/454168897

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	But economics is a social science with few truly reliable laws of behavior, and chart 1 surely is suggestive of a long record of informative GNP forecasting.
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org