About: http://webisa.webdatacommons.org/444003057

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 regression models that are the typical non-experimental basis for most of the kinds of claims you cite consistently fail to establish the asserted causal relationship between the intervention and the outcome.
http://www.w3.org/ns/prov#wasQuotedFrom	aei.org