Here's a link to a FAQ about company hiring procedures that includes a reference to the Schmidt and Hunter paper, along with more recent literature.
https://news.ycombinator.com/item?id=4613543 Note that because most companies do NOT hire on the basis of IQ (especially so in the United States), it is often not the case that the highest-paid persons are the smartest persons, even in the same company and the same job classification.
Some management consulting and financial firms ask candidates for SAT scores, a proxy for IQ. The most prestigious colleges stay that way by using the SAT/ACT filter. The most prestigious law schools use the LSAT, and law firms that hire only from certain law schools are using the LSAT filter. Companies that require candidates to have a bachelor's degree are screening for IQ and persistence. So do companies that require a high school diploma, at a lower level. The U.S. military, a big employer, screens out the bottom 1/3 of the IQ distribution using the AFQT:
http://isteve.blogspot.com/2013/04/almost-100-million-people-arent-smart.html Almost 100 million people aren't smart enough to enlist in the military
by Steve Sailer
April 10, 2013 .
