About: http://webisa.webdatacommons.org/429268337

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	Since other things rarely are constant, an empirical study has to estimate what would have happened in a world in which everything except the policy change was the same.
http://www.w3.org/ns/prov#wasQuotedFrom	legal-planet.org