q=%E5%AF%B9%E4%BA%BA%E8%BF%9B%E8%A1%8C%E6%8A%95%E8%B5%84%EF%BC%9A%E4%BA%BA%E5%8F%A3%E8%B4%A8%E9%87%8F%E7%BB%8F%E6%B5%8E%E5%AD%A6%EF%BC%9Athe+economics+of+population+quality&searchType=standard&isFacet=true&view=standard&rows=10&sortWay=score&sortOrder=desc&curlibcode=HP&searchWay0=marc&logical0=AND
rows=10&curlibcode=HP&searchWay0=marc&logical0=AND
对人进行投资：人口质量经济学：the economics of population quality