<http://webisa.webdatacommons.org/15187411>	<http://www.w3.org/ns/prov#value>	"That is, since modern economies mainly reward persons who have much education and other human capital, parents tend to invest a lot in each of a fewer number of children." .
<http://webisa.webdatacommons.org/15187411>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<becker-posner-blog.com> .
<http://webisa.webdatacommons.org/15187411>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/514142927>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/15187411> .